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Home › engine oil: grades, brands and changes (part 1)

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engine oil: grades, brands and changes (part 1)

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An independent guide for drivers in England, Scotland, Wales and Northern Ireland: what a fault is, which part it points to and what the MOT makes of it. We’re not a garage, and nothing here replaces a qualified mechanic’s eyes on your car.

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© 2026 thepartsadvisor · 7,976 answers · last updated 20 October 2026