Castrol Magnatec (C3) 5W-40 Fully Synthetic Engine Oil 1L

Castrol Magnatec (C3) 5W-40 Fully Synthetic Engine Oil 1L is a fully synthetic 5W-40 engine oil from Castrol, supplied in a 1L pack. It meets ACEA C3, API SP, API SQ and carries manufacturer approvals including BMW Longlife-04, FIAT 9.55535-S2, MB 229.51.

Castrol MAGNATEC contains intelligent molecules that cling to engine surfaces, so protection is in place from the moment the engine is started, when most wear takes place.

Specifications at a glance

Suitable for

Use where the vehicle manufacturer calls for BMW Longlife-04; FIAT 9.55535-S2; MB 229.51; MB 229.52; Fiat 9.55535-S2; MB 229.31; MB 229.51; MB 229.52. Commonly used in BMW and MINI, Mercedes-Benz, Fiat, Alfa Romeo and Jeep vehicles. Always confirm the grade against your owner's handbook or service schedule before use, as requirements vary between engines of the same model.

Key benefits

• Fully synthetic base oil keeps its viscosity stable from cold starts to sustained high temperatures.
• ACEA C3: a low-SAPS specification that protects diesel particulate filters and catalysts while keeping a higher film strength, used by BMW, Mercedes-Benz, Volkswagen Group and GM.
• API SP: the current API petrol engine category, with added protection against low-speed pre-ignition in turbocharged engines.

Frequently asked questions

Is Castrol Magnatec (C3) 5W-40 right for my car?

Look in your handbook or on the oil filler cap for the specification codes listed above, such as BMW Longlife-04. If your vehicle lists one of them, this oil meets the requirement. If you are unsure, send us your registration number and we will confirm the correct grade.

What does 5W-40 mean?

The first number (5W) describes how easily the oil flows when cold, so a lower number means easier cold starts. The second number describes the oil's thickness at normal running temperature. Always use the grade your manufacturer specifies.

How much oil will I need?

Most petrol and diesel cars take between 4 and 6 litres for a full oil change, so a 1L pack is ideal for top-ups between services. Check your handbook for the exact capacity including the filter.

Supplied sealed in the manufacturer's original packaging and dispatched from the UK by Nitroma Lubricants.