1999 Cadillac CateraFuel Economy & MPG Ratings

Gasoline Midsize CarsRear-Wheel Drive
1999 Cadillac Catera

Photo: IFCAR. Public domain. via Wikimedia Commons

City
16
MPG
Highway
23
MPG
Combined
18
MPG

Real-World MPG

Based on 1 owner report via EPA fueleconomy.gov

19.0MPG average+5.6% vs EPA label
EPA combined: 18 MPG · Owner reported avg: 19.0 MPG

Driving mix: City 80% / Highway 20%

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 19.0 real world MPG based on 1 owner report. EPA combined rating is 18 MPG.

Trim Comparison

Automatic 4-spd
Premium
City
16
Hwy
23
Comb
18
Fuel cost: $4,550/yr
Annual Fuel Cost
$4,550

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

5-Year Fuel Savings
$-10,750

vs. average new vehicle

EPA Fuel Economy Score: -1/10
GHG Score: -1/10

Environment

CO₂ Tailpipe Emissions
494 g/mile
Annual Petroleum Consumption
16.5 barrels

Specifications

Engine
3L 6-cyl
Transmission
4-speed Automatic
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
3L, 6-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$3,742/yr
California
$5.957/gal$4,964/yr
Texas
$3.888/gal$3,240/yr
Florida
$4.136/gal$3,447/yr
New York
$4.522/gal$3,768/yr
Ohio
$4.510/gal$3,758/yr
Washington
$5.591/gal$4,659/yr
Colorado
$4.618/gal$3,848/yr
Minnesota
$4.344/gal$3,620/yr
Massachusetts
$4.448/gal$3,707/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 18 MPG combined. Regular gasoline prices. Actual costs vary.

Related

Cadillac Catera MPG History
See how this model's fuel economy changed by year

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