Gallonly
2000 Jaguar XJ8 Vanden Plas (X308)
Shown: 2000 Jaguar XJ8 Vanden Plas (X308). Photo: Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
  • Newest year: 2003
  • Gas
  • Small cars
  • Same as 2002

2000-2003 Jaguar XJ MPG & Fuel Cost

4 model years · 18 MPG combined

18 MPG
Combined
15 MPG
City
22 MPG
Highway
Annual fuel cost · Sport 4.0L 8-cyl RWD
$4,460

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

Cheaper to fuel than 1 of 10 small car configurations, MY2003. Ranked against all rated configurations, not sales-weighted.

2000-2003 Jaguar XJ at a glance

The 2000-2003 Jaguar XJ covers 4 model years in the EPA database (8 configurations in all), rated 18 MPG combined. The newest model year, 2003, costs about $4,460 a year to fuel for its most efficient version, the Sport 4.0L 8-cyl RWD (18 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2002; 2001 and 2003 repeat the values of the year before.

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

2000-2003 Jaguar XJ by model year

2000-2003 Jaguar XJ: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2003 Gas 18 MPG $4,460 Same EPA ratings as 2002
2002 Gas 18 MPG $4,460 Ratings changed
2001 Gas 18 MPG $4,460 Same EPA ratings as 2000
2000 Gas 18 MPG $4,460 First year

What the 2003 Sport 4.0L 8-cyl RWD costs to drive

Per month

$372

$4,460 a year ÷ 12

Per 25 miles

$7.43

Per 100 miles

$29.73

Five years

$22,300

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

vs the small car median

$970more a year

Class median $3,490 a year, MY2003

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

2003 Jaguar XJ MPG

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

EPA lists the same ratings for the 2003 Jaguar XJ as for the 2002 model, so the configurations and costs are the ones in the 2002 section above.See 2002

Gas · 4.0L
Combined
18 MPG
Per year
$4,460

Gas configurations (2)

2003 Jaguar XJ gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Sport (Most efficient) 4.0L 8-cyl RWD 15 22 18 $4,460
XJ8 4.0L 8-cyl RWD 15 22 18 $4,460

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

2002 Jaguar XJ MPG

18 MPG · $4,460/yr

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

Versus 2001: The most efficient configuration stays at 18 MPG. Its annual cost stays at $4,460.

Gas · 4.0L
Combined
18 MPG
Per year
$4,460

Gas configurations (2)

2002 Jaguar XJ gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Sport (Most efficient) 4.0L 8-cyl RWD 15 22 18 $4,460
XJ8 4.0L 8-cyl RWD 15 22 18 $4,460

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

2001 Jaguar XJ MPG

Same EPA ratings as 2000

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

EPA lists the same ratings for the 2001 Jaguar XJ as for the 2000 model, so the configurations and costs are the ones in the 2000 section above.See 2000

2000 Jaguar XJ MPG

18 MPG · $4,460/yr

EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.

Gas · 4.0L
Combined
18 MPG
Per year
$4,460

Gas configurations (2)

2000 Jaguar XJ gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
XJ8 (Most efficient) 4.0L 8-cyl RWD 15 22 18 $4,460
XJ8L 4.0L 8-cyl RWD 15 22 18 $4,460

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

Fuel cost by state

Yearly cost of the Sport 4.0L 8-cyl RWD: $5,320 in California and $3,870 in Texas, a $1,450 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 MY2003 small 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 2000-2003 Jaguar XJ get?

EPA rates the 2000-2003 Jaguar XJ at 18 MPG combined across 8 configurations and 4 model years. The most efficient version, the 2003 Sport 4.0L 8-cyl RWD, is rated 18 MPG (15 city, 22 highway).

Which years had the best MPG in the 2000-2003 Jaguar XJ?

Every model year of the 2000-2003 Jaguar XJ tops out at 18 MPG combined, so no year is better than another.

Did EPA ratings change during the 2000-2003 Jaguar XJ?

Yes. Ratings changed in 2002. In 2001 and 2003 the values repeat the year before.

How much does it cost to fuel a 2003 Jaguar XJ per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Sport 4.0L 8-cyl RWD costs about $4,460 a year. Across all 2 configurations the cost runs $4,460 a year.

How much does it cost to drive a 2003 Jaguar XJ 100 miles?

About $29.73 per 100 miles for the Sport 4.0L 8-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.

Is the 2003 Jaguar XJ more efficient in the city or on the highway?

The Sport 4.0L 8-cyl RWD is rated 15 city and 22 highway MPG, so it is more efficient on the highway, by 7 MPG.

How does the 2003 Jaguar XJ compare with other small car configurations?

The Sport 4.0L 8-cyl RWD costs about $4,460 a year to fuel, $970 more than the class median of $3,490, and less than 1 of 10 small car configurations. The comparison covers all 349 rated small car configurations for MY2003, not weighted by sales.

Is the 2003 Jaguar XJ different from the 2002 model?

No. EPA lists the same ratings for 2002 and 2003: 2 configurations rated 18 MPG combined. See the 2002 Jaguar XJ for that year.