Petrol Jaguar Xj: MOT pass rate
76.5% of petrol Jaguar Xjs pass the MOT first time, measured across 11,398 DVSA tests on that fuel type alone. Average mileage at test was 96,694.
Petrol against the other Jaguar Xj versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 81.6% | 12,010 |
| Petrol | 76.5% | 11,398 |
| All Jaguar Xj | 79.1% | 23,446 |
Why the fuel type changes the number
Petrol cars avoid the DPF and emissions failures that catch diesels, and usually fail on the same consumables as any other car.
On the Jaguar Xj specifically, diesel is the strongest at 81.6%, and this petrol version sits 2.6 points below the 79.1% model average.
What it means if you are buying one
The petrol Jaguar Xj fails more often than the model average, so budget for the items that catch this fuel type and treat a fresh MOT as worth paying for. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average petrol Jaguar Xj had covered 96,694 miles at test, against 88,202 for the diesel. That is above average and into the range where cambelts and water pumps are due if they have not already been done, so ask for the service history rather than take the mileage on trust.
Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Jaguar Xj page separate age from fuel if you want to isolate one.
Other Jaguar Xj fuel types
- Diesel Jaguar Xj - 81.6%