2006 Lexus GS 300 4WDFuel Economy & MPG Ratings

Gasoline Midsize Cars4-Wheel or All-Wheel Drive
City
19
MPG
Highway
25
MPG
Combined
21
MPG

Real-World MPG

Based on 2 owner reports via EPA fueleconomy.gov

20.7MPG average-1.4% vs EPA label
EPA combined: 21 MPG · Owner reported avg: 20.7 MPG

Range: 19–24 MPG

Driving mix: City 25% / Highway 75%

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 20.7 real world MPG based on 2 owner reports. EPA combined rating is 21 MPG.

Trim Comparison

Automatic (S6)
Premium
City
19
Hwy
25
Comb
21
Fuel cost: $3,900/yr
Annual Fuel Cost
$3,900

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

5-Year Fuel Savings
$-7,500

vs. average new vehicle

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

Environment

CO₂ Tailpipe Emissions
423 g/mile
Annual Petroleum Consumption
14.2 barrels

Specifications

Engine
3L 6-cyl
Transmission
6-speed Automatic
Drivetrain
AWD
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$3,207/yr
California
$5.957/gal$4,255/yr
Texas
$3.888/gal$2,777/yr
Florida
$4.136/gal$2,954/yr
New York
$4.522/gal$3,230/yr
Ohio
$4.510/gal$3,221/yr
Washington
$5.591/gal$3,994/yr
Colorado
$4.618/gal$3,299/yr
Minnesota
$4.344/gal$3,103/yr
Massachusetts
$4.448/gal$3,177/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 21 MPG combined. Regular gasoline prices. Actual costs vary.

Related

Lexus GS 300 4WD MPG History
See how this model's fuel economy changed by year

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