Jaguar XJ X308 4.0 petrol 294PS

4.0 petrol 294PS is one engine in the Jaguar XJ X308. Power, economy, and CO₂ below are ranges where the trims or gearboxes differ. Each row in the variant table is one configuration.

Engine summary

Fuel: Petrol
Power: 294.1 PS
Combined mpg: 23.5–23.8 mpg
CO₂: 287 g/km
Variants: 3 variants
UK dataset: 74 cars in our dataset

Catalogue registration span: 1997 – 2002. This is the span of records, not a production announcement.

Where this engine is offered

TrimsSovereign Lwb, Xj8, Sovereign Swb

GearboxesAutomatic

FuelsPetrol

Body stylesSaloon

Variants with this engine

3 published variants.

Stored PS for published variants of this engine. Brake horsepower is not plotted.

NEDC combined mpg

Sovereign Lwb 4.0 petrol 294PS23.8 mpg
Sovereign Swb 4.0 petrol 294PS23.8 mpg
Xj8 4.0 petrol 294PS23.5 mpg

Combined mpg on the NEDC test only. A different official cycle is not on this chart.

Variant	Fuel	Gearbox	Body	Power	Combined mpg	Dataset
Sovereign Lwb 4.0 petrol 294PS	Petrol	Automatic	Saloon	294.1 PS (290 bhp)	23.8 mpg (NEDC)	42
Sovereign Swb 4.0 petrol 294PS	Petrol	Automatic	Saloon	294.1 PS (290 bhp)	23.8 mpg (NEDC)	11
Xj8 4.0 petrol 294PS	Petrol	Automatic	Saloon	294.1 PS (290 bhp)	23.5 mpg (NEDC)	21

Other engines in this generation

Mpg ranges are not ranked across engines because the test cycle is stored on the variant, not on the engine range.

Engine	Fuel	Power	Combined mpg range	CO₂ range	Dataset
3.2 petrol 243PS	Petrol	243.4 PS	23.5 mpg	290 g/km	207
4.0 petrol 375PS	Petrol	375.2 PS	21.6 mpg	182 g/km	81

Back to X308

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Check your Jaguar XJ X308 4.0 petrol 294PS

Enter a UK registration to check a Jaguar XJ 4.0 petrol 294PS. This page describes that engine, not one number plate.

How these figures are produced

Specifications and counts come from the VehicleScore UK vehicle catalogue. A count of cars is the number of records in that dataset. It is not UK production, not sales, and not the number of cars currently on the road.

Power is shown in PS where the catalogue stores PS, and in bhp only where bhp is stored separately. Official fuel economy is labelled NEDC or WLTP when the test cycle is known. Figures from different cycles are not ranked together. Empty values are left blank.

The catalogue does not store a revision date, so these pages do not show a last-updated day.