- Gas
- Standard SUVs
- MY2003–2009
Isuzu Ascender MPG & Fuel Cost by Year
7 model years · 2003–2009
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Isuzu Ascender fuel economy at a glance
EPA has rated the Isuzu Ascender for 7 model years, 2003 to 2009. Across those years its combined rating runs 14–16 MPG. The latest model year, 2009, has 1 configuration rated 16 MPG combined and costing $4,080 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2003 is the 2009 5-passenger 4.2L 6-cyl 4WD, at 16 MPG.
Isuzu Ascender MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2009 Generation page | ||
| 2009 | 16 | $4,080 |
| 2003-2008 (2003) Generation page | ||
| 2008 | 16 | $4,080 |
| 2007 | 16 | $4,080 |
| 2006 | 15–16 | $4,080–$4,360 |
| 2005 | 15–16 | $4,080–$4,360 |
| 2004 | 14–16 | $4,080–$4,670 |
| 2003 | 14–16 | $4,080–$4,670 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Isuzu Ascender generations
2 generations between 2003 and 2009. Open one for the table of every model year and configuration.
2009 powertrain options
More Isuzu models
Frequently asked questions
What is the Isuzu Ascender's gas mileage by year?
EPA combined ratings for the Isuzu Ascender run 14–16 MPG across model years 2003 to 2009. The latest year, 2009, is rated 16 MPG.
Which Isuzu Ascender model year has the best gas mileage?
The 2009 Isuzu Ascender 5-passenger 4.2L 6-cyl 4WD has the highest combined rating since 2003, at 16 MPG.
How much does a Isuzu Ascender cost to fuel per year?
For MY2009, EPA-rated configurations cost $4,080 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,080.
Has the Isuzu Ascender's fuel economy improved over time?
Not much. The most efficient configuration is rated 16 MPG in both 2003 and 2009.