1998 Isuzu TrooperFuel Economy & MPG Ratings
Gasoline Special Purpose Vehicle 4WD4-Wheel or All-Wheel Drive
City
13
MPG
Highway
18
MPG
Combined
15
MPG
Real-World MPG
Based on 1 owner report via EPA fueleconomy.gov
15.0MPG average+0.0% vs EPA label
EPA combined: 15 MPG · Owner reported avg: 15.0 MPG
Driving mix: City 70% / Highway 30%
Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.
Owner reported MPG for this vehicle averages 15.0 real world MPG based on 1 owner report. EPA combined rating is 15 MPG.
Trim Comparison
Automatic 4-spd
Regular
City
13
Hwy
18
Comb
15
Fuel cost: $4,500/yr
Manual 5-spd
Regular
City
14
Hwy
18
Comb
15
Fuel cost: $4,500/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic 4-spd | Regular | 13 | 18 | 15 | $4,500 |
| Manual 5-spd | Regular | 14 | 18 | 15 | $4,500 |
Annual Fuel Cost
$4,500
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$-10,500
vs. average new vehicle
EPA Fuel Economy Score: -1/10
GHG Score: -1/10
Environment
- CO₂ Tailpipe Emissions
- 592 g/mile
- Annual Petroleum Consumption
- 19.8 barrels
Specifications
- Engine
- 3.5L 6-cyl
- Transmission
- 4-speed Automatic
- Drivetrain
- AWD
- Body Style
- Special Purpose Vehicle 4WD
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 3.5L, 6-cylinder
- Induction Type
- V-6
- Fuel Type
- Regular Gasoline
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$4,490/yr
California
$5.957/gal$5,957/yr
Texas
$3.888/gal$3,888/yr
Florida
$4.136/gal$4,136/yr
New York
$4.522/gal$4,522/yr
Ohio
$4.510/gal$4,510/yr
Washington
$5.591/gal$5,591/yr
Colorado
$4.618/gal$4,618/yr
Minnesota
$4.344/gal$4,344/yr
Massachusetts
$4.448/gal$4,448/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $4,490/yr | — |
| California | $5.957/gal | $5,957/yrHIGHEST | +$1,467 |
| Texas | $3.888/gal | $3,888/yrLOWEST | $-602 |
| Florida | $4.136/gal | $4,136/yr | $-354 |
| New York | $4.522/gal | $4,522/yr | +$32 |
| Ohio | $4.510/gal | $4,510/yr | +$20 |
| Washington | $5.591/gal | $5,591/yr | +$1,101 |
| Colorado | $4.618/gal | $4,618/yr | +$128 |
| Minnesota | $4.344/gal | $4,344/yr | $-146 |
| Massachusetts | $4.448/gal | $4,448/yr | $-42 |
Calculated at 15,000 miles/year (EPA standard assumption) using 15 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Isuzu Trooper MPG History
See how this model's fuel economy changed by year