1999 Lexus GS
2 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| GS 300/GS 400 | 16 | 22 | 18 | Premium Gasoline | Rear-Wheel Drive | 4L 8-cyl | Automatic 5-spd |
| GS 300/GS 400 | 18 | 23 | 20 | Premium Gasoline | Rear-Wheel Drive | 3L 6-cyl | Automatic 5-spd |