How car motor oil works

Learn how Shell Helix engine oils work and their importance when maintaining a healthy car. See how easy it is to check your oil, and then explore our FAQ section for our expert help, including advice on car engine oil types.

Frequently asked questions

Inside your car engine

Maintaining your engine

Changing your oil

Checking your oil and battery levels

Reading the signs to maintain engine health

Myths about car oil

Questions answered and popular myths dispelled

Synthetic engine oil

To help you understand oil better, here are the answers to the questions we’re most frequently asked.

Featured Content

Find the right oil to use

Use our Shell LubeMatch tool to find the right oil for your vehicle.

Shell engine oils and lubricants

Shell is the number one global lubricant supplier and has a 70-year history of innovation. Explore Shell’s range of engine oils and lubricants for cars, motorcycles, trucks and more.

Motoring tips and advice

Take better care of your vehicle by learning how to become more fuel efficient and safer on the road.

How car motor oil works

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Featured Content

Find the right oil to use

Shell engine oils and lubricants

Motoring tips and advice