{"title":"Holts","description":"\u003cp\u003eThe full Holts range at Nitroma Lubricants: Holts greases, silicone and maintenance sprays, Radweld and Wondarweld radiator and head gasket sealers, Speedflush, carburettor and EGR cleaner, brake cleaner, degreasers and fuel treatments.\u003c\/p\u003e\u003cp\u003eAll products are genuine, supplied sealed in the manufacturer's packaging and dispatched from the UK.\u003c\/p\u003e","products":[{"product_id":"holts-professional-white-grease-500ml","title":"Holts Professional White Grease 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Professional White Grease 500ml\u003c\/strong\u003e is a grease from Holts in a 500ml pack.\u003c\/p\u003e\u003cp\u003eHolts is a British motoring maintenance brand with over a century of history in car care and workshop products.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHolts Professional White Grease\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552777680\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0017A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eKey benefits\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eReduces friction and wear on bearings, pivots and sliding surfaces and helps keep moisture and dirt out.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is Holts Professional White Grease used for?\u003c\/h3\u003e\u003cp\u003eGrease products like this are used for lubricating bearings, bushes, hinges, battery terminals and brake caliper slides, and for preventing seizure on threads and fasteners. Follow the directions on the pack and keep away from brake friction surfaces.\u003c\/p\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63874970452298,"sku":"552777680","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/552777680_20-_20HMTN0017A_Holts_20White_20Lithium_20Grease_20with_20PTFE_20500ml.jpg?v=1791633425"},{"product_id":"holts-professional-copper-grease-500ml","title":"Holts Professional copper grease 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Professional copper grease 500ml\u003c\/strong\u003e is a grease from Holts in a 500ml pack. Holts Professional Copper Grease protects against corrosion preventing seized parts.\u003c\/p\u003e\u003cp\u003eHolts is a British motoring maintenance brand with over a century of history in car care and workshop products.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHolts Professional copper grease\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552777690\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0018A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eKey benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces friction and wear on bearings, pivots and sliding surfaces and helps keep moisture and dirt out.\u003c\/li\u003e\n\u003cli\u003eHolts Professional Copper Grease protects against corrosion preventing seized parts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is Holts Professional copper grease used for?\u003c\/h3\u003e\u003cp\u003eGrease products like this are used for lubricating bearings, bushes, hinges, battery terminals and brake caliper slides, and for preventing seizure on threads and fasteners. Follow the directions on the pack and keep away from brake friction surfaces.\u003c\/p\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63874970485066,"sku":"552777690","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/552777690_20-_20HMTN0018A_Holts_20Copper_20Grease_20500ml.jpg?v=1791633426"},{"product_id":"holts-spray-grease-500ml","title":"Holts Spray Grease 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Spray Grease 500ml\u003c\/strong\u003e is a lubricant spray from Holts in a 500ml pack.\u003c\/p\u003e\u003cp\u003eHolts is a British motoring maintenance brand with over a century of history in car care and workshop products.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHolts Spray Grease\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMAI0101A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eKey benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEasy aerosol or drip application for hinges, cables, locks, chains and fixings around the vehicle and workshop.\u003c\/li\u003e\n\u003cli\u003eHolts Spray Grease 500ml. Multi Purpose Grease\u003c\/li\u003e\n\u003cli\u003eReduces Friction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is Holts Spray Grease used for?\u003c\/h3\u003e\u003cp\u003eLubricant Spray products like this are used for freeing seized fixings, lubricating hinges, cables and chains, displacing moisture and protecting bare metal from corrosion. Follow the directions on the pack and keep away from brake friction surfaces.\u003c\/p\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63874970517834,"sku":"552996150","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/552996150_20-_20HMAI0101A_Holts_20Spray_20Grease_20500ml.jpg?v=1791633428"},{"product_id":"holts-silicone-spray-500ml","title":"Holts Silicone Spray 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Silicone Spray 500ml\u003c\/strong\u003e is a lubricant spray from Holts in a 500ml pack.\u003c\/p\u003e\u003cp\u003eHolts is a British motoring maintenance brand with over a century of history in car care and workshop products.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHolts Silicone Spray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0301A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eKey benefits\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eEasy aerosol or drip application for hinges, cables, locks, chains and fixings around the vehicle and workshop.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is Holts Silicone Spray used for?\u003c\/h3\u003e\u003cp\u003eLubricant Spray products like this are used for freeing seized fixings, lubricating hinges, cables and chains, displacing moisture and protecting bare metal from corrosion. Follow the directions on the pack and keep away from brake friction surfaces.\u003c\/p\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63874970550602,"sku":"552996170","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/552996170_20-_20HMTN0301A_Holts_20Silicone_20Spray_20500ml.jpg?v=1791633429"},{"product_id":"holts-multi-purpose-maintenance-spray-500ml","title":"Holts Multi-Purpose Maintenance Spray 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Multi-Purpose Maintenance Spray 500ml\u003c\/strong\u003e is a lubricant spray from Holts in a 500ml pack. Holts Maintenance Spray is a multi-use lubricant and release spray that instantly penetrates seized parts to reduce friction restore movement or aid removal.\u003c\/p\u003e\u003cp\u003eHolts is a British motoring maintenance brand with over a century of history in car care and workshop products.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHolts Multi-Purpose Maintenance Spray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0401A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eKey benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEasy aerosol or drip application for hinges, cables, locks, chains and fixings around the vehicle and workshop.\u003c\/li\u003e\n\u003cli\u003eCleans lubricates and protects\u003c\/li\u003e\n\u003cli\u003eDrives out moisture\u003c\/li\u003e\n\u003cli\u003eQuickly releases seized parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is Holts Multi-Purpose Maintenance Spray used for?\u003c\/h3\u003e\u003cp\u003eLubricant Spray products like this are used for freeing seized fixings, lubricating hinges, cables and chains, displacing moisture and protecting bare metal from corrosion. Follow the directions on the pack and keep away from brake friction surfaces.\u003c\/p\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63874970583370,"sku":"552996180","price":6.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/552996180_20-_20HMTN0401A_Holts_20Multi-Purpose_20Maintenance_20Spray_20500ml.jpg?v=1791633429"},{"product_id":"holts-bradex-easy-start-300ml","title":"Holts Bradex Easy Start 300ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Bradex Easy Start 300ml\u003c\/strong\u003e is a specialist workshop chemical from Holts, supplied in a 300ml pack, used for workshop and vehicle maintenance.\u003c\/p\u003e\u003cp\u003eHolts bradex easy start. Starts all engines .Suitable for all petrol and diesel engines.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eSpecialist Workshop Chemical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eEasy Start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e549771931\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eBES1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972107878730,"sku":"549771931","price":4.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_afb489bb-32d9-4811-97d2-81c845c8f59e.webp?v=1792351030"},{"product_id":"holts-speedflush-250ml","title":"Holts Speedflush 250ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Speedflush 250ml\u003c\/strong\u003e is a cooling system treatment from Holts, supplied in a 250ml pack, used for flushing, cleaning or sealing the cooling system.\u003c\/p\u003e\u003cp\u003eOver time rust, scale, sludge and deposits can build up on the inside of your engine’s cooling system meaning it doesn’t work efficiently and could lead to blocked channels.\u003c\/p\u003e \u003cp\u003eIn extreme situations your vehicle can overheat or freeze in winter with consequences that are fatal for your engine.\u003c\/p\u003e \u003cp\u003eHolts Speedflush is a cooling system cleaner that clears the radiator and cooling system quickly. Flushing out harmful scale and deposits will prevent overheating and extend the life of your vehicle.\u003c\/p\u003e \u003cp\u003eIt can be used on any engine to clear out scale and debris, ready for filling with antifreeze\/coolant.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eCooling System Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e250ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e549772091\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eRK1R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972132061514,"sku":"549772091","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_837d8aba-8200-464c-a25f-ebb3d149a7fc.webp?v=1792351138"},{"product_id":"holts-radweld-250ml","title":"Holts Radweld 250ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Radweld 250ml\u003c\/strong\u003e is a cooling system treatment from Holts, supplied in a 250ml pack, used for flushing, cleaning or sealing the cooling system.\u003c\/p\u003e\u003cp\u003eFollow the label carefully: most cooling system treatments are added with the engine cold and then run up to temperature, and some are designed to be flushed out afterwards.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eCooling System Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e250ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eRadiator Repairs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e549772101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eRW2R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972132290890,"sku":"549772101","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_24ec9178-beda-4bfe-b9ef-705a5de0d44b.webp?v=1792351139"},{"product_id":"holts-wondarweld-250ml","title":"Holts Wondarweld 250ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Wondarweld 250ml\u003c\/strong\u003e is a cooling system treatment from Holts, supplied in a 250ml pack, used for flushing, cleaning or sealing the cooling system.\u003c\/p\u003e\u003cp\u003eHolts Wondarweld is a professional cooling system repair product that’s designed to fix small cracks and holes in the cylinder head, engine block and head gasket. Thanks to its heavy-duty formula, the product provides a permanent repair without causing damage or clogging the system, so you can fix small problems without the need for a costly repair. \u003c\/p\u003e \u003cp\u003e\u003cb\u003eHow Does Wondarweld Work?\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e Wondarweld is a professional, heavy-duty repair solution that’s suitable for all engine types. Added direct to the cylinder head, it permanently seals small holes and cracks in the engine block, head gaskets and water pump gaskets, restoring the integrity of the engine and cooling system.\u003c\/p\u003e \u003cp\u003eOnce added to the engine, Wondarweld circulates through the cooling system, seeking out small holes, cracks, and leaks to form a permanent repair. Lab-developed to ensure maximum performance and longevity, the product is safe for use on all common engine materials, including steel, aluminium, and iron.\u003c\/p\u003e \u003cp\u003eA 250 ml bottle of Wondarweld is sufficient for cooling systems up to 8-litre.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eHow Do I Use Wondarweld?\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eBefore using Wondarweld, drain the cooling system and flush with Cooling System Flush to remove any residue and contaminants left behind by the old coolant. After draining, reattach the bottom hose.\u003c\/p\u003e \u003cp\u003eTo use Wondarweld, you’ll need to remove the top hose from the cylinder head outlet before removing the thermostat. Do this, then use a funnel to apply the product directly into the cylinder head outlet, taking care not to pour into oil as this can cause serious engine damage.\u003c\/p\u003e \u003cp\u003eAfter applying the product, replace the thermostat and top hose. Refill the system with clean water and run the engine for 15 minutes to repair the leak.\u003c\/p\u003e \u003cp\u003eWhen the repair is complete and no fluid is leaking, drain the system again, flush with clean water, and then top up with a high-quality coolant\/antifreeze product.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eDo I Have to Remove the Engine Thermostat to Use Wondarweld?\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eYes. Since Wondarweld is designed to be applied directly to the cylinder head outlet, you’ll need to remove the top hose and thermostat to access it. After pouring the product into the system, you can replace the thermostat and hose before circulating the product through the system.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eDoes Wondarweld Offer a Permanent Repair?\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eHolts Wondarweld is designed to provide a permanent repair for small holes and cracks in engine blocks, cylinder head gaskets and water pump gaskets. Tested to the highest standards, it is used by professionals to fix cooling system leaks without the need for other more time and labour-intensive means of repair.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eCooling System Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e250ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e549774491\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHREP0062A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972163354954,"sku":"549774491","price":13.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_16058f5d-9cb9-4371-a78a-e3e0c66ef074.webp?v=1792351245"},{"product_id":"holts-valve-grinding-kit","title":"Holts Valve Grinding Kit","description":"\u003cp\u003e\u003cstrong\u003eHolts Valve Grinding Kit\u003c\/strong\u003e is a specialist workshop chemical from Holts, used for workshop and vehicle maintenance.\u003c\/p\u003e\u003cp\u003eCylinder head valves control the intake of fuel\/air and the removal of exhaust gases from your car’s combustion chamber. The valves open to do this, but it is crucial that when they close, the valves create a gas tight seal with the valve seats.\u003c\/p\u003e \u003cp\u003eIf they don’t close tightly it can cause a loss of compression, resulting in a significant loss of power. Over time valves and seats can suffer from deposits, erosion and pitting. Fuel combustion causes stubborn deposits to build up on the valves and this prevents them from closing properly. This is made worse by modern fuels that lack lubrication. When the build-up starts to prevent a gas tight seal between the valve and the seat, they may need to be reconditioned, and you can do this with a Holts Valve Grinding Kit. \u003c\/p\u003e \u003cp\u003eThe coarse grade polish can be used to resurface heavily soiled valves or pitted valve seats with minimum effort, while the fine grade abrasive rapidly polishes the valve seats.\u003c\/p\u003e \u003cp\u003eUsing the abrasives with the suction cup stick will help to seat your valves correctly, restore cylinder compression and improve engine power and efficiency.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eSpecialist Workshop Chemical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGuarantee\u003c\/th\u003e\n\u003ctd\u003e12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e549778661\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eVG4RA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972175315274,"sku":"549778661","price":8.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_9b5c153d-17d2-4156-959c-e96b4dda8bec.webp?v=1792351331"},{"product_id":"holts-radweld-plus","title":"Holts Radweld Plus","description":"\u003cp\u003e\u003cstrong\u003eHolts Radweld Plus\u003c\/strong\u003e is a cooling system treatment from Holts, used for flushing, cleaning or sealing the cooling system.\u003c\/p\u003e\u003cp\u003eRadweld Plus is an easy to use, total cooling system leak repair. It works through your system to quickly seal leaks in:\u003c\/p\u003e \u003cli\u003eRadiators \u003c\/li\u003e\u003cli\u003eEngine blocks \u003c\/li\u003e\u003cli\u003eCylinder heads \u003c\/li\u003e\u003cli\u003eHoses \u003c\/li\u003e\u003cli\u003eHeater core \u003c\/li\u003e\u003cli\u003eWater pump gaskets \u003cp\u003eRadweld Plus can be used at home and is simple to use; there’s no need to flush or drain the system. Simply pour in and let Radweld Plus locate and seal the leaks.\u003c\/p\u003e \u003cp\u003eHolts have been developing automotive repair products to keep you driving since 1919. Our products are developed in our UK laboratories and tested on the road.\u003c\/p\u003e \u003cp\u003eRadweld Plus is part of our trusted Radweld range which is guaranteed to work in all vehicles without causing damage.\u003c\/p\u003e\n\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eCooling System Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e549992101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eRW2RGA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e\n\u003c\/li\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972187144522,"sku":"549992101","price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_5135a49d-24a9-407d-aea8-e5421c38ff72.webp?v=1792351422"},{"product_id":"holts-wondarweld-500ml","title":"Holts Wondarweld 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Wondarweld 500ml\u003c\/strong\u003e is a cooling system treatment from Holts, supplied in a 500ml pack, used for flushing, cleaning or sealing the cooling system.\u003c\/p\u003e\u003cp\u003eFollow the label carefully: most cooling system treatments are added with the engine cold and then run up to temperature, and some are designed to be flushed out afterwards.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eCooling System Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e550770330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eWW500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63972187832650,"sku":"550770330","price":18.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_0f4689be-ae41-4f64-9213-c4a977d48431.webp?v=1792351424"},{"product_id":"holts-sealit-leak-repair-250ml","title":"Holts Sealit Leak Repair 250ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Sealit Leak Repair 250ml\u003c\/strong\u003e is a cooling system treatment from Holts, supplied in a 250ml pack, used for flushing, cleaning or sealing the cooling system.\u003c\/p\u003e\u003cp\u003eSEALit is a professional multifunctional leak repair suitable for all cars.\u003c\/p\u003e\u003cp\u003eThe simple pour and go no clogging formula works through the entire engine and cooling system seeking out leaks to create a professional, permanent repair in a matter of minutes.\u003c\/p\u003e\u003cp\u003eSEALit is easy to use – simply pour and fix with no need to drain or flush the system, turning leak repairs into a quick job.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eCooling System Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e250ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eCooling System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e550779990\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHREP0101A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63991414096202,"sku":"550779990","price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_7b3c4e95-eb1b-4109-bc1f-4bdde1f9c956.webp?v=1792398347"},{"product_id":"holts-brake-cleaner-5l","title":"Holts Brake Cleaner 5L","description":"\u003cp\u003e\u003cstrong\u003eHolts Brake Cleaner 5L\u003c\/strong\u003e is a brake cleaner from Holts, supplied in a 5L pack, used for removing brake dust, oil and grease from brake parts before fitting or inspection.\u003c\/p\u003e\u003cp\u003eSpray onto brake components and allow to evaporate fully before reassembly. Use on cool components only and keep away from paintwork.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eBrake Cleaner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMAI0202B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63991416193354,"sku":"552996140","price":20.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_728b71e5-a7c1-46a4-a976-1b82cb69435f.webp?v=1792398350"},{"product_id":"holts-professional-carburettor-and-egr-cleaner-500ml","title":"Holts Professional Carburettor \u0026 EGR Cleaner 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Professional Carburettor \u0026amp; EGR Cleaner 500ml\u003c\/strong\u003e is a fuel additive and treatment from Holts, supplied in a 500ml pack, used for cleaning and protecting the fuel system, injectors and emissions components.\u003c\/p\u003e\u003cp\u003eHolts EGR \u0026amp; Carb cleaner quickly removes harmful deposits such as varnish and gum, caused by petrol in carburettors and carbon from recirculated exhaust gases in diesel engines.\u003c\/p\u003e \u003cp\u003eEngines with Exhaust Gas Recirculation systems (EGR) are designed to reduce emissions, but can suffer from harmful deposits. Cleaning the system with our professional quality cleaner prevents soot building up, which can lead to EGR valves sticking, resulting in poor performance and reduced drivability.\u003c\/p\u003e \u003cp\u003eRemoves carbon deposits, restoring performance, engine efficiency and throttle response.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eFuel Additive \u0026amp; Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eAdditives, Fluids and Sprays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0201A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63991515775306,"sku":"552996160","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_23ec2146-2c37-401f-8319-30e08bc433e9.webp?v=1792398438"},{"product_id":"holts-electrical-contact-cleaner-500ml","title":"Holts Electrical Contact Cleaner 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Electrical Contact Cleaner 500ml\u003c\/strong\u003e is a parts cleaner and degreaser from Holts, supplied in a 500ml pack, used for cleaning and degreasing engine parts, components and workshop surfaces.\u003c\/p\u003e\u003cp\u003eHolts Electrical Contact Cleaner is specially formulated to quickly remove oil, grease and dirt, and restore electrical connectivity without causing damage. Auto electronics and electrical parts like ignition components can become dirty and corroded over time through exposure to the elements. Holts Electrical Contact Cleaner has a powerful cleaning action, is quick to dry and leaves no sticky or oily residue.\u003c\/p\u003e \u003cp\u003eIt is easy to use without removing any parts thanks to its ability to spray at all angles, including upside down.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eParts Cleaner \u0026amp; Degreaser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0601A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63991517479242,"sku":"552996200","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_16f669af-7982-4f27-9a0b-bc9b2698a7bf.webp?v=1792398439"},{"product_id":"holts-engine-and-part-degreaser-500ml","title":"Holts Engine \u0026 Part Degreaser 500ml","description":"\u003cp\u003e\u003cstrong\u003eHolts Engine \u0026amp; Part Degreaser 500ml\u003c\/strong\u003e is a parts cleaner and degreaser from Holts, supplied in a 500ml pack, used for cleaning and degreasing engine parts, components and workshop surfaces.\u003c\/p\u003e\u003cp\u003eUse in a well ventilated area and test on a small hidden area first when cleaning painted or plastic parts.\u003c\/p\u003e\u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eParts Cleaner \u0026amp; Degreaser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e552996210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer reference\u003c\/th\u003e\n\u003ctd\u003eHMTN0701A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSupplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants. Always read the label and follow the manufacturer's directions and safety advice before use.\u003c\/p\u003e","brand":"Holts","offers":[{"title":"Default Title","offer_id":63991517512010,"sku":"552996210","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/2206\/7786\/files\/unnamed_4ff7fe2c-319b-44ed-828e-e4086bcee760.webp?v=1792398439"}],"url":"https:\/\/nitromalubricants.co.uk\/collections\/holts.oembed","provider":"Nitroma Lubricants","version":"1.0","type":"link"}