Widely used in more modern cars, 15w40 engine oil provides essential lubrication between moving components in a vehicle to prevent corrosion, overheating and rust. Regular top-ups - typically occurring every 3,000 miles or three months, whichever comes first - are required to keep cars in good working condition, and to stop harmful deposits forming. 15w40 engine oil can be used with most passenger cars, as well as vans, light trucks and motorcycles without a wet clutch. Its multi-purpose qualities make it useful to have to hand, but it's important to check your owner's handbook to find out the recommended grade of engine oil for your individual vehicle. Whatever engine oil you need, you'll find a vast collection available at Euro Car Parts. We stock the best brands at unmissable prices, and you can shop online or enjoy same-day click and collection from one of over 200 branches nationwide.