Petrol vs diesel
- See whether you should go for a petrol or diesel car
- Calculate annual fuel bills for petrol and diesel versions of the same car
- Residual values for petrol and diesel cars
- How to find the cheapest petrol and diesel
What's in this guide
Petrol and diesel fuel costs
Will driving a diesel car be cheaper than driving a petrol car? Use our interactive calculator to figure out which is best for you.
Choosing between petrol and diesel
Car tax, servicing costs, residual values and other issues to consider when deciding between petrol and diesel cars.