How often should I check engine oil?

Park on level ground and follow the manufacturer's method because dipstick and electronic systems differ between vehicles.

An oil level below minimum can damage the engine, while overfilling can also cause problems.

If the level repeatedly falls, look for leaks or oil consumption rather than simply topping it up indefinitely.

For 'How often should I check engine oil?', treat the issue as a current roadworthiness matter rather than something to leave until the next MOT. A valid MOT does not protect you if the vehicle develops a defect afterwards.

Check the current source for 'How often should I check engine oil?' before acting if the relevant rule, policy, fee or eligibility has recently changed. Keep any official confirmation or reference number produced by the process because it can help resolve a later query. This note is specific to answer 466.