2009 Lexus GS 350Fuel Economy & MPG Ratings
Photo: 2013_Lexus_GS_350_Monterey_wrld_event_01.jpg: Motohide Miwa from USA derivative work: Altair78 (talk). CC BY 2.0. via Wikimedia Commons
Real-World MPG
Based on 1 owner report via EPA fueleconomy.gov
Driving mix: City 20% / Highway 80%
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 24.7 real world MPG based on 1 owner report. EPA combined rating is 22 MPG.
Trim Comparison
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic (S6) | Premium | 19 | 26 | 22 | $3,700 |
Based on gasoline at $3.67/gal, 15,000 miles/year
vs. average new vehicle
Environment
- CO₂ Tailpipe Emissions
- 404 g/mile
- Annual Petroleum Consumption
- 13.5 barrels
Specifications
- Engine
- 3.5L 6-cyl
- Transmission
- 6-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
- 3.5L, 6-cylinder
- Fuel Type
- Premium Gasoline
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $3,061/yr | — |
| California | $5.957/gal | $4,062/yrHIGHEST | +$1,001 |
| Texas | $3.888/gal | $2,651/yrLOWEST | $-410 |
| Florida | $4.136/gal | $2,820/yr | $-241 |
| New York | $4.522/gal | $3,083/yr | +$22 |
| Ohio | $4.510/gal | $3,075/yr | +$14 |
| Washington | $5.591/gal | $3,812/yr | +$751 |
| Colorado | $4.618/gal | $3,149/yr | +$88 |
| Minnesota | $4.344/gal | $2,962/yr | $-99 |
| Massachusetts | $4.448/gal | $3,033/yr | $-28 |
Calculated at 15,000 miles/year (EPA standard assumption) using 22 MPG combined. Regular gasoline prices. Actual costs vary.