2018 Jaguar Xj

Full-Size Sedan Premium
Jaguar Xj 2018
21MPG Combined
3 Trims
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Updated February 27, 2026

The 2018 Jaguar Xj Full-Size Sedan provides 18–21 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.

2018 Jaguar Xj Specifications

SpecValue
Combined MPG18–21 combined MPG depending on trim
City MPG18
Highway MPG27
Body StyleFull-Size Sedan
Fuel TypePremium
DriveRWD
Available Trims3

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
8 cyl15/23/185.0L 8cylAutomatic (S8)
6 cyl18/27/213.0L 6cylAutomatic (S8)
6 cyl17/26/203.0L 6cylAutomatic (S8)

Annual Fuel Cost

Based on EPA estimates, the 2018 Jaguar Xj costs approximately $2,983 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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