2003 Lexus GS 300/Gs 430

Sedan Premium
Lexus GS 300/Gs 430 2003
19MPG Combined
2 Trims
← 2002 2003 2004 →
Updated February 27, 2026

The 2003 Lexus GS 300/Gs 430 Sedan provides 18–19 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.

2003 Lexus GS 300/Gs 430 Specifications

SpecValue
Combined MPG18–19 combined MPG depending on trim
City MPG16
Highway MPG23
Body StyleSedan
Fuel TypePremium
DriveRWD
Available Trims2

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
6 cyl16/23/193.0L 6cylAutomatic (S5)
Auto16/22/184.3L 8cylAutomatic 5-spd

Annual Fuel Cost

Based on EPA estimates, the 2003 Lexus GS 300/Gs 430 costs approximately $3,150 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

Compare the 2003 Lexus GS 300/Gs 430

See how it stacks up against similar vehicles:

Other Model Years

Check Vehicle History

Considering a used Lexus GS 300/Gs 430? Get a comprehensive vehicle history report including accident records, ownership history, and more.

🔍 Check Lexus GS 300/Gs 430 Vehicle History Check VIN →
Check Vehicle History

Get the full story — accidents, ownership, recalls, odometer, and more. Decode any VIN instantly.

Check VIN
Buying a used Lexus GS 300/Gs 430? Check VIN on RedVIN