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Engine Oils

Find the right engine oil for your car

Wondering what engine oil to use for your car? Use our engine oil lookup and get engine oil recommendations matched to your vehicle.

Simply enter your car details and the results will give you the correct specification and amount of engine oil for servicing your engine.

Once you've found the right engine oil, buy online from the biggest and best independent online supplier of motoring oils & fluids.

We stock a massive range of fully synthetic, semi synthetic, and mineral engine oil service kits, all picked by lubricant experts and including enough oil for a full change and a disposable filling kit (funnel, gloves, wipes). These engine oil packs DO NOT come with a filter; if you need a kit with a filter select Engine Oil & Oil Filter.

We pride ourselves on having something for every budget and application. Got a unique vehicle and not sure what engine oil is right? No problem, get a FREE recommendation from the Opie Experts. We'll find the right oil to match your vehicle, its condition, and your style of driving.

Quick Engine Oil Links:

Engine Oil by Viscosity

Engine Oil by Type

Fully Synthetic Engine Oil

Semi Synthetic Engine Oil

Mineral Engine Oil

Most Popular Engine Oils

Mobil 1 ESP 5W-30

5 Litres

£48.95

Total Quartz Ineo ECS 5w-30

5 Litres

£34.99

Castrol Classic XL 20W-50

1 Gallon (4.54L)

£36.95

Motul 8100 X-Clean+ 5w-30

5 Litres

£50.50

Shell Helix Ultra 5W-40 synth

5 Litres

£37.99

Millers Trident Pro 10w-40

5 Litres

£27.95

Engine Oil FAQs

What is car engine oil?

The primary function of engine oil is to lubricate the internal components of your car's engine. However, it also does a whole host of other tasks such as cooling your engine by more evenly distributing heat, cleaning it using built in oil additive detergents, improving the sealing, and inhibiting corrosion.

Which engine oil for your car/what engine oil to use?

You will generally find the recommended car engine oil grade/viscosity & specification within your vehicle's handbook, or you can use our engine oil lookup to make sure you're getting the right oil.
Which product you need to use will depend on your make, model, and variant of car, as well as other factors such as your driving style and the condition of your vehicle.

Why do engine oil grades and specifications matter?

Each vehicle's engine is produced and designed around a certain engine oil grade/viscosity plus a very precise specification. Oil specifications are varied to cope with the vastly different strains and stresses vehicle motors have to cope with (cc size, DPF, diesel, and petrol to name just a few). Therefore, to maintain the efficiency, lifespan, and performance or your engine you should always stick with the oil that your engine was designed to take (unless your vehicle is heavily performance modified).