1991 Cadillac AllanteFuel Economy & MPG Ratings

Gasoline Two SeatersFront-Wheel Drive

Photo: Randy Stern from Minneapolis, MN, USA. CC BY 2.0. via Wikimedia Commons

City

MPG

Highway

MPG

Combined

MPG

Trim Comparison

Automatic 4-spd

Premium

City

Hwy

Comb

Fuel cost: $5,100/yr

Trim	Engine	City	Hwy	Combined	Fuel Cost/yr
Automatic 4-spd	Premium	14	20	16	$5,100

Annual Fuel Cost

$5,100

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

5-Year Fuel Savings

$-13,500

vs. average new vehicle

EPA Fuel Economy Score: -1/10

GHG Score: -1/10

Environment

CO₂ Tailpipe Emissions: 555 g/mile
Annual Petroleum Consumption: 18.6 barrels

Specifications

Engine: 4.5L 8-cyl
Transmission: 4-speed Automatic
Drivetrain: FWD
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: 4.5L, 8-cylinder
Induction Type: Gas Guzzler, Port Fuel Injection
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$4,209/yr

California

$5.957/gal$5,585/yr

Texas

$3.888/gal$3,645/yr

Florida

$4.136/gal$3,878/yr

New York

$4.522/gal$4,239/yr

Ohio

$4.510/gal$4,228/yr

Washington

$5.591/gal$5,242/yr

Colorado

$4.618/gal$4,329/yr

Minnesota

$4.344/gal$4,073/yr

Massachusetts

$4.448/gal$4,170/yr

State	Gas Price	Annual Cost	vs. National Avg
National AvgEPA default	$4.490/gal	$4,209/yr	—
California	$5.957/gal	$5,585/yrHIGHEST	+$1,376
Texas	$3.888/gal	$3,645/yrLOWEST	$-564
Florida	$4.136/gal	$3,878/yr	$-331
New York	$4.522/gal	$4,239/yr	+$30
Ohio	$4.510/gal	$4,228/yr	+$19
Washington	$5.591/gal	$5,242/yr	+$1,033
Colorado	$4.618/gal	$4,329/yr	+$120
Minnesota	$4.344/gal	$4,073/yr	$-136
Massachusetts	$4.448/gal	$4,170/yr	$-39