Used car price index vs diesel
Watch used car prices slide as diesel climbs, and see what it means for your car.
Are used car prices falling? See the official UK used car price index against the weekly diesel pump price, updated automatically. Check what your diesel has lost and what it costs to fuel.
This is a free UK calculator. Enter your figures to get an instant, personalised result — no signup, no email capture, no upsell.
Frequently asked questions
Are used car prices falling in the UK?
The chart above shows the latest official figures from the Office for National Statistics, covering all used cars. Red points are months where prices fell fast, and the shaded area marks the current run of monthly falls.
Do higher diesel prices push used car values down?
Higher running costs make buyers less willing to pay for thirsty cars, which puts pressure on prices. The chart lets you see how the two have moved together, month by month.
Should I sell my diesel now?
Compare what your car is losing in value with what it costs you in fuel each year. If both are rising, switching to an EV, for example through salary sacrifice at work, can save money every month.