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2014 Jaguar XJL
Shown: 2014 Jaguar XJL. Photo: Michael Sheehan, CC BY 2.0, via Wikimedia Commons
  • Newest year: 2017
  • Gas
  • Large cars

2014-2017 Jaguar XJL MPG & Fuel Cost

4 model years · 18–21 MPG combined

21 MPG
Combined
18 MPG
City
27 MPG
Highway
Annual fuel cost · XJL 3.0L 6-cyl supercharged RWD
$3,790

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 4 of 10 large car configurations, MY2017. Ranked against all rated configurations, not sales-weighted.

Previous generation: 2013

2014-2017 Jaguar XJL at a glance

The 2014-2017 Jaguar XJL covers 4 model years in the EPA database (14 configurations in all), rated 18–21 MPG combined. The newest model year, 2017, costs about $3,790 a year to fuel for its most efficient version, the XJL 3.0L 6-cyl supercharged RWD (21 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2016 and 2017; 2015 repeat the values of the year before. The best combined rating in the generation, 21 MPG, was reached in 2016 and 2017.

2014-2017 Jaguar XJL by model year

2014-2017 Jaguar XJL: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2017 Gas 18–21 MPG $3,790–$4,540 Ratings changed
2016 Gas 18–21 MPG $3,790–$4,540 Ratings changed
2015 Gas 18–20 MPG $4,010–$4,540 Same EPA ratings as 2014
2014 Gas 18–20 MPG $4,010–$4,540 First year

What the 2017 XJL 3.0L 6-cyl supercharged RWD costs to drive

Per month

$316

$3,790 a year ÷ 12

Per 25 miles

$6.32

Per 100 miles

$25.27

Five years

$18,950

5 × the yearly cost, prices held at today's level

vs the large car median

$360more a year

Class median $3,430 a year, MY2017

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2017 Jaguar XJL MPG

Versus 2016: The most efficient configuration stays at 21 MPG. Its annual cost stays at $3,790.

Gas · 3.0L, 5.0L
Combined
18–21 MPG
Per year
$3,790–$4,540

Gas configurations (3)

2017 Jaguar XJL gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
XJL 3.0L 6-cyl supercharged RWD (Most efficient) 3.0L 6-cyl supercharged RWD 18 27 21 $3,790
XJL 3.0L 6-cyl supercharged AWD 3.0L 6-cyl supercharged AWD 17 25 20 $4,070
XJL 5.0L 8-cyl supercharged 5.0L 8-cyl supercharged RWD 15 23 18 $4,540

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2016 Jaguar XJL MPG

18–21 MPG · $3,790–$4,540/yr

Versus 2015: The most efficient configuration moves from 20 to 21 MPG, up 1. Its annual cost goes from $4,010 to $3,790, $220 less.

Gas · 3.0L, 5.0L
Combined
18–21 MPG
Per year
$3,790–$4,540

Gas configurations (3)

2016 Jaguar XJL gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
XJL 3.0L 6-cyl supercharged RWD (Most efficient) 3.0L 6-cyl supercharged RWD 18 27 21 $3,790
XJL 3.0L 6-cyl supercharged AWD 3.0L 6-cyl supercharged AWD 17 25 20 $4,070
XJL 5.0L 8-cyl supercharged 5.0L 8-cyl supercharged RWD 15 23 18 $4,540

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2015 Jaguar XJL MPG

Same EPA ratings as 2014

EPA lists the same ratings for the 2015 Jaguar XJL as for the 2014 model, so the configurations and costs are the ones in the 2014 section above.See 2014

2014 Jaguar XJL MPG

18–20 MPG · $4,010–$4,540/yr
Gas · 3.0L, 5.0L
Combined
18–20 MPG
Per year
$4,010–$4,540

Gas configurations (4)

2014 Jaguar XJL gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
FFV 3.0L 6-cyl supercharged (Most efficient) 3.0L 6-cyl supercharged RWD 17 27 20 $4,010
XJL 3.0L 6-cyl supercharged 3.0L 6-cyl supercharged AWD 16 24 19 $4,250
XJL 5.0L 8-cyl supercharged 5.0L 8-cyl supercharged RWD 15 23 18 $4,540
FFV 5.0L 8-cyl supercharged 5.0L 8-cyl supercharged RWD 15 23 18 $4,540

4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Flex-fuel (E85) configurations are costed on gasoline, not E85.

Fuel cost by state

Yearly cost of the XJL 3.0L 6-cyl supercharged RWD: $4,510 in California and $3,280 in Texas, a $1,230 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2017 large car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2014-2017 Jaguar XJL get?

EPA rates the 2014-2017 Jaguar XJL at 18–21 MPG combined across 14 configurations and 4 model years. The most efficient version, the 2017 XJL 3.0L 6-cyl supercharged RWD, is rated 21 MPG (18 city, 27 highway).

Which years had the best MPG in the 2014-2017 Jaguar XJL?

The XJL 3.0L 6-cyl supercharged RWD reached the generation's best combined rating, 21 MPG, in 2016 and 2017. The lowest top rating, 20 MPG, was in 2014 and 2015.

Did EPA ratings change during the 2014-2017 Jaguar XJL?

Yes. Ratings changed in 2016 and 2017. In 2015 the values repeat the year before.

How does the 2014-2017 Jaguar XJL compare with the previous generation?

The previous generation (2013 Jaguar XJL) is rated 18–19 MPG combined and costs $4,300–$4,540 a year to fuel; the 2014-2017 model is rated 18–21 MPG and costs $3,790–$4,540 a year.

How much does it cost to fuel a 2017 Jaguar XJL per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the XJL 3.0L 6-cyl supercharged RWD costs about $3,790 a year. Across all 3 configurations the cost runs $3,790–$4,540 a year. That is a $750 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2017 Jaguar XJL 100 miles?

About $25.27 per 100 miles for the XJL 3.0L 6-cyl supercharged RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $25.27 and $30.27 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2017 Jaguar XJL more efficient in the city or on the highway?

The XJL 3.0L 6-cyl supercharged RWD is rated 18 city and 27 highway MPG, so it is more efficient on the highway, by 9 MPG.

How does the 2017 Jaguar XJL compare with other large car configurations?

The XJL 3.0L 6-cyl supercharged RWD costs about $3,790 a year to fuel, $360 more than the class median of $3,430, and less than 4 of 10 large car configurations. The comparison covers all 123 rated large car configurations for MY2017, not weighted by sales.

Is the 2017 Jaguar XJL different from the 2016 model?

The most efficient configuration stays at 21 MPG. Its annual cost stays at $3,790. EPA lists 3 configurations for 2017 against 3 configurations for 2016. See the 2016 Jaguar XJL for that year.