# Mileage on a used car — what's normal, what's a red flag

Live version: https://autoscout.fyi/guides/mileage

The UK average is about 7,000 miles a year. That single number anchors everything on this page.

## The 7,000-mile benchmark

Rough rule for what's "normal":

- 1-year-old: 7,000–10,000 miles
- 3-year-old: 20,000–30,000 miles
- 5-year-old: 35,000–45,000 miles
- 8-year-old: 55,000–70,000 miles
- 10-year-old: 70,000–90,000 miles

A car at or below the average for its age isn't automatically better. What matters is how the miles were used and how the car was looked after.

## Why high mileage is often misunderstood

Motorway miles are easy miles. A five-year-old with 80,000 motorway miles can be in better mechanical shape than a three-year-old on 25,000 short urban runs — cold-start wear, DPF blockages, and short-trip corrosion hit city cars harder than fleet cars on the M6.

High-mileage cars with full service history, even tyres, and no advisories at MOT are often the best-value buy in a segment. Low mileage is only a bonus when everything else checks out.

## Low mileage can be a red flag

- A car that's done less than 4,000 miles a year has probably sat on short trips. Check the exhaust for condensation, the battery for sulfation, and the DPF history on a diesel.
- "Low mileage, garage-kept, one-lady-owner" is sometimes true, often a cover story for a car that was rarely serviced because it was rarely driven.
- Very low recorded mileage on an older car is also the classic clocking profile.

## Electric cars — mileage doesn't matter, battery does

Modern EV traction batteries are warrantied for 100,000 miles or 8 years — higher mileage isn't the issue buyers fear it is. What matters is battery state of health (SoH):

- 90%+ SoH — basically as-new.
- 85–90% — normal for a 3–5 year old EV.
- Below 80% — range will be noticeably shorter, resale value hit.

Ask the dealer for a battery health certificate or take the car to a specialist for a SoH test before buying. Independent testers in the UK charge £50–£150 and produce a report in an hour.

## Clocking

Clocking — winding the odometer back — is still common, especially on high-value SUVs and vans. UK estimates put 1 in 14 used cars as clocked.

How to spot it:

- MOT history at gov.uk/check-mot-history shows recorded mileage at every test. Any step back, or a long flat period on an otherwise daily-driver car, is a warning.
- Wear on the driver's seat bolster, steering wheel rim, gear lever, and pedal rubbers should match the mileage.
- Service stamps and invoices both record mileage — they should be consistent and rising.
- A professional history check (HPI, RAC) will flag mileage anomalies.

If the paperwork and the car don't agree, walk away.

Sources: DVSA MOT history, Department for Transport annual mileage statistics.