2004 Dodge Viper ConvertibleFuel Economy & MPG Ratings

Gasoline Two SeatersRear-Wheel Drive

Photo: IFCAR. Public domain. via Wikimedia Commons

City

MPG

Highway

MPG

Combined

MPG

Trim Comparison

Manual 6-spd

Premium

City

Hwy

Comb

Fuel cost: $6,300/yr

Trim	Engine	City	Hwy	Combined	Fuel Cost/yr
Manual 6-spd	Premium	11	19	13	$6,300

Annual Fuel Cost

$6,300

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings

$-19,500

vs. average new vehicle

EPA Fuel Economy Score: -1/10

GHG Score: -1/10

Environment

CO₂ Tailpipe Emissions: 684 g/mile
Annual Petroleum Consumption: 22.9 barrels

Specifications

Engine: 8.3L 10-cyl
Transmission: 6-speed Manual
Drivetrain: RWD
Body Style: Sedan
GVWR: Class 1 (≤6,000 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size: 8.3L, 10-cylinder
Fuel Type: Premium Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default

$4.490/gal$5,181/yr

California

$5.957/gal$6,873/yr

Texas

$3.888/gal$4,486/yr

Florida

$4.136/gal$4,772/yr

New York

$4.522/gal$5,218/yr

Ohio

$4.510/gal$5,204/yr

Washington

$5.591/gal$6,451/yr

Colorado

$4.618/gal$5,328/yr

Minnesota

$4.344/gal$5,012/yr

Massachusetts

$4.448/gal$5,132/yr

State	Gas Price	Annual Cost	vs. National Avg
National AvgEPA default	$4.490/gal	$5,181/yr	—
California	$5.957/gal	$6,873/yrHIGHEST	+$1,692
Texas	$3.888/gal	$4,486/yrLOWEST	$-695
Florida	$4.136/gal	$4,772/yr	$-409
New York	$4.522/gal	$5,218/yr	+$37
Ohio	$4.510/gal	$5,204/yr	+$23
Washington	$5.591/gal	$6,451/yr	+$1,270
Colorado	$4.618/gal	$5,328/yr	+$147
Minnesota	$4.344/gal	$5,012/yr	$-169
Massachusetts	$4.448/gal	$5,132/yr	$-49