How many miles per gallon does a 2007 GS 450h get?
The 2007 GS 450h, Lexus’s first hybrid version of its midsize sedan, delivers fuel economy in the mid-20s depending on driving. Official EPA estimates place it at about 23 mpg in city driving and 28 mpg on the highway, for a combined around 25 mpg. Real-world results vary with traffic, terrain, and how the car is driven.
EPA ratings and real-world performance
The following numbers reflect the model’s official EPA ratings when new, along with typical real-world outcomes reported by owners.
- City: 23 mpg
- Highway: 28 mpg
- Combined: 25 mpg
In practice, most drivers report mileage in the low- to mid-20s, with highway trips and gentle acceleration tending toward the higher end of that range.
What factors influence mpg on the 2007 GS 450h
Several variables determine how efficiently a GS 450h runs in daily use. The following factors commonly affect fuel economy here:
- Driving style: Aggressive acceleration and high-speed driving lower mpg more than careful cruising.
- Terrain and conditions: City congestion can hurt efficiency, while steady highway cruising typically improves it.
- Tire choice and pressure: Underinflated or non‑low-rolling-resistance tires can reduce economy.
- Vehicle load and aerodynamics: Heavy payloads and rooftop cargo reduce mpg.
- Climate control usage: Air conditioning can tax the hybrid system and reduce efficiency, especially in hot weather.
- Maintenance and aging: Engine wear, battery health, and regular maintenance affect mpg.
Owners who optimize these factors often see mileage near the higher end of the expected range; those who push the car hard or carry heavy loads may see noticeably lower figures.
Tips to maximize fuel economy
Practical steps can help maximize efficiency without sacrificing safety or comfort:
- Keep tires properly inflated to the recommended pressure.
- Use eco or EV modes when appropriate to favor electric assist at lower speeds.
- Plan routes to minimize idling and stop-and-go driving.
- Regular maintenance: replace air filters, spark plugs, and monitor battery health.
- Lighten the load and remove roof racks or cargo carriers when not needed.
- Avoid aggressive driving: smooth acceleration and steady speeds improve mpg.
By following these practices, drivers can help the GS 450h approach its EPA estimates in typical conditions.
Summary
The 2007 GS 450h offers a mid-20s fuel economy profile, officially rated at 23 mpg city, 28 mpg highway, for a combined 25 mpg. Real-world mileage varies with driving style, terrain, and maintenance, but many owners see results in the low-to-mid 20s under normal conditions. The hybrid drivetrain provides favorable city efficiency for a luxury sedan of its size and power, while highway mpg remains solid for a vehicle of this class.
