- (uncountable) Petrol is a liquid fuel made from oil.
- I don't care whether the car's got a diesel engine or a petrol engine as long as it'll get me from A to B.
- Drivers are lining up for hours in front of petrol stations.
- Petrol prices are on the way up again with Shell pushing prices at the pumps to more than £2.34p.
- Let's hope the car doesn't run out of petrol.