1984 Peugeot 604 SedanFuel Economy & MPG Ratings

Diesel Compact Cars

City

MPG

Highway

MPG

Combined

MPG

Trim Comparison

Manual 5-spd

Diesel

City

Hwy

Comb

Fuel cost: $3,500/yr

Automatic 3-spd

Diesel

City

Hwy

Comb

Fuel cost: $3,850/yr

Trim	Engine	City	Hwy	Combined	Fuel Cost/yr
Manual 5-spd	Diesel	22	26	24	$3,500
Automatic 3-spd	Diesel	21	23	22	$3,850

Annual Fuel Cost

$3,500

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

5-Year Fuel Savings

$-5,500

vs. average new vehicle

EPA Fuel Economy Score: -1/10

GHG Score: -1/10

Environment

CO₂ Tailpipe Emissions: 424 g/mile
Annual Petroleum Consumption: 14.9 barrels

Specifications

Engine: 2.3L 4-cyl
Transmission: 3-speed Automatic
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: 2.3L, 4-cylinder
Induction Type: (DSL,TRBO)
Fuel Type: Diesel

Annual Fuel Cost by State

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

National AvgEPA default

$4.490/gal$2,806/yr

California

$5.957/gal$3,723/yr

Texas

$3.888/gal$2,430/yr

Florida

$4.136/gal$2,585/yr

New York

$4.522/gal$2,826/yr

Ohio

$4.510/gal$2,819/yr

Washington

$5.591/gal$3,494/yr

Colorado

$4.618/gal$2,886/yr

Minnesota

$4.344/gal$2,715/yr

Massachusetts

$4.448/gal$2,780/yr

State	Gas Price	Annual Cost	vs. National Avg
National AvgEPA default	$4.490/gal	$2,806/yr	—
California	$5.957/gal	$3,723/yrHIGHEST	+$917
Texas	$3.888/gal	$2,430/yrLOWEST	$-376
Florida	$4.136/gal	$2,585/yr	$-221
New York	$4.522/gal	$2,826/yr	+$20
Ohio	$4.510/gal	$2,819/yr	+$13
Washington	$5.591/gal	$3,494/yr	+$688
Colorado	$4.618/gal	$2,886/yr	+$80
Minnesota	$4.344/gal	$2,715/yr	$-91
Massachusetts	$4.448/gal	$2,780/yr	$-26