Gallonly
Isuzu-Ascender-5Pass
Shown: Isuzu-Ascender-5Pass. Photo: IFCAR, Public domain, via Wikimedia Commons
  • Newest year: 2009
  • Gas
  • Standard SUVs

2009 Isuzu Ascender MPG & Fuel Cost

1 configuration · 16 MPG combined

16 MPG
Combined
14 MPG
City
20 MPG
Highway
Annual fuel cost · 5-passenger 4.2L 6-cyl 4WD
$4,080

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 3 of 10 standard SUV configurations, MY2009. Ranked against all rated configurations, not sales-weighted.

2009 Isuzu Ascender at a glance

The 2009 Isuzu Ascender has 1 configuration in the EPA database, rated 16 MPG combined. The most efficient is the 5-passenger 4.2L 6-cyl 4WD at 16 MPG, which costs about $4,080 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The 5-passenger 4.2L 6-cyl 4WD costs less to fuel than 3 of 10 standard SUV configurations rated for MY2009 (class median $3,840 a year).

What the 2009 5-passenger 4.2L 6-cyl 4WD costs to drive

Per month

$340

$4,080 a year ÷ 12

Per 25 miles

$6.80

Per 100 miles

$27.20

Five years

$20,400

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

vs the standard SUV median

$240more a year

Class median $3,840 a year, MY2009

Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).

2009 Isuzu Ascender MPG

Gas · 4.2L
Combined
16 MPG
Per year
$4,080

Gas configurations (1)

2009 Isuzu Ascender gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
5-passenger (Most efficient) 4.2L 6-cyl 4WD 14 20 16 $4,080

Fuel cost by state

Yearly cost of the 5-passenger 4.2L 6-cyl 4WD: $5,550 in California and $3,560 in Texas, a $1,990 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 MY2009 standard SUV 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

How does the 2009 Isuzu Ascender compare with the previous generation?

The previous generation (2003-2008 Isuzu Ascender) is rated 14–16 MPG combined and costs $4,080–$4,670 a year to fuel; the 2009 model is rated 16 MPG and costs $4,080 a year.

What gas mileage does the 2009 Isuzu Ascender get?

EPA rates the 2009 Isuzu Ascender at 16 MPG combined across 1 configuration. The most efficient, the 5-passenger 4.2L 6-cyl 4WD, is rated 16 MPG combined (14 city / 20 highway).

How much does it cost to fuel a 2009 Isuzu Ascender per year?

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the 5-passenger 4.2L 6-cyl 4WD costs about $4,080 a year. Across all 1 configuration the cost runs $4,080 a year.

How much does it cost to drive a 2009 Isuzu Ascender 100 miles?

About $27.20 per 100 miles for the 5-passenger 4.2L 6-cyl 4WD at regular gasoline $4.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.

Is the 2009 Isuzu Ascender more efficient in the city or on the highway?

The 5-passenger 4.2L 6-cyl 4WD is rated 14 city and 20 highway MPG, so it is more efficient on the highway, by 6 MPG.

How does the 2009 Isuzu Ascender compare with other standard SUV configurations?

The 5-passenger 4.2L 6-cyl 4WD costs about $4,080 a year to fuel, $240 more than the class median of $3,840, and less than 3 of 10 standard SUV configurations. The comparison covers all 341 rated standard SUV configurations for MY2009, not weighted by sales.

Is the 2009 Isuzu Ascender different from the 2008 model?

The most efficient configuration stays at 16 MPG. Its annual cost stays at $4,080. EPA lists 1 configuration for 2009 against 2 configurations for 2008. See the 2008 Isuzu Ascender for that year.