2005-2010 Jeep Grand Cherokee MPG & Fuel Cost

EPA rates the 2005-2010 Jeep Grand Cherokee at 12–20 MPG combined across 45 configurations and 6 model years. The most efficient version, the 2008 Grand Cherokee 3.0L 6-cyl RWD, is rated 20 MPG (18 city, 23 highway). By powertrain: Gas: 12–18 MPG; Diesel: 19–20 MPG.

The Grand Cherokee 3.0L 6-cyl RWD reached the generation's best combined rating, 20 MPG, in 2007 and 2008. The lowest top rating, 17 MPG, was in 2005 and 2006.

Yes. Ratings changed in 2006, 2007, 2008, 2009 and 2010.

The previous generation (2000-2004 Jeep Grand Cherokee) is rated 14–17 MPG combined and costs $3,840–$4,670 a year to fuel; the 2005-2010 model is rated 12–20 MPG and costs $3,630–$6,700 a year.

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Grand Cherokee 3.7L 6-cyl RWD costs about $3,630 a year. Across all 5 configurations the cost runs $3,630–$6,050 a year. That is a $2,420 difference between the cheapest and the costliest configuration.

About $24.20 per 100 miles for the Grand Cherokee 3.7L 6-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $24.20 and $40.33 across all configurations. That is the annual cost over 15,000 miles divided by 150.

The Grand Cherokee 3.7L 6-cyl RWD is rated 16 city and 21 highway MPG, so it is more efficient on the highway, by 5 MPG.

The Grand Cherokee 3.7L 6-cyl RWD costs about $3,630 a year to fuel, the same as the class median of $3,630, and less than 5 of 10 standard SUV configurations. The comparison covers all 301 rated standard SUV configurations for MY2010, not weighted by sales.

The most efficient configuration stays at 18 MPG. Its annual cost stays at $3,630. EPA lists 5 configurations for 2010 against 9 configurations for 2009. See the 2009 Jeep Grand Cherokee for that year.