Is the Lexus IS 250 good on gas?
In brief, the Lexus IS 250’s fuel economy sits in the mid-20s miles per gallon (mpg) on average, with highway driving typically yielding higher numbers than city driving. It’s not the most fuel-efficient luxury compact, but it offered reasonable efficiency for a V6-powered sedan of its era.
Fuel economy basics for the IS 250
Key EPA estimates by configuration in the U.S. market help buyers compare performance and efficiency. The figures below reflect common ranges across model years and drivetrain options.
- IS 250 RWD (2006–2013): EPA estimates around 21 mpg city / 28 mpg highway; combined in the low‑to‑mid 20s (roughly 23–24 mpg). Real‑world results vary with driving style.
- IS 250 AWD (2006–2011): EPA estimates around 20 mpg city / 26–27 mpg highway; combined roughly 23 mpg. All‑wheel‑drive versions use more fuel due to drivetrain losses.
- General note on variations: Model‑year updates, transmissions, and tires can nudge mileage by a mile or two; many owners report slightly better or worse real‑world numbers depending on conditions.
In practice, these figures show that the IS 250’s efficiency sits in the mid‑20s, with highway cruising delivering the best mileage and city driving being the most demanding.
Real‑world mileage and factors that matter
Owners commonly see mileage that diverges from EPA estimates depending on conditions. Highway trips tend to push mpg higher, while stop‑and‑go city driving, heavy acceleration, and high loads can lower it. Several factors influence real‑world performance:
- Maintenance state: Regular oil changes, clean air filters, and proper spark plug operation help keep the engine efficient.
- Tire condition and pressure: Underinflated tires increase rolling resistance and reduce mpg.
- Driving behavior: Gentle acceleration, steady speeds, and anticipating traffic can improve efficiency.
- Vehicle load and aerodynamics: Roof racks and extra weight reduce fuel economy, especially on highways.
- Model year and drivetrain: RWD typically delivers better mpg than AWD, and later model years may show minor improvements or changes in transmission tuning.
Conclusion for this section: Real‑world mileage for the IS 250 generally falls in the mid‑20s mpg, with highway mileage higher and city mileage lower, and it varies based on how the car is configured and driven.
Tips to maximize fuel economy in the IS 250
To help drivers squeeze more mpg from the IS 250, consider practical adjustments and maintenance habits. The following list outlines common, effective steps:
- Keep tires properly inflated to the recommended pressure, which reduces rolling resistance.
- Follow the vehicle’s maintenance schedule for oil changes, air filters, and spark plugs to maintain peak engine efficiency.
- Drive smoothly: accelerate gradually, maintain a steady speed, and anticipate traffic to minimize unnecessary braking and acceleration.
- Avoid carrying unnecessary weight and remove roof racks when not in use to reduce aerodynamic drag.
- Plan routes to minimize congestion and idling; on long highway trips, cruise control can help maintain a steady pace and improve fuel economy.
Conclusion: With sensible driving and regular maintenance, the IS 250 can deliver reasonable mpg for its era, but those prioritizing maximum fuel efficiency may favor more modern four‑cylinder models or hybrids available in later Lexus lineups.
Summary
The Lexus IS 250 offers mid‑20s mpg in typical use, with better highway efficiency and weaker city performance. While not a standout fuel saver today, it remains a respectable option for buyers seeking a compact luxury sedan with Lexus reliability. For the best mpg, consider newer four‑cylinder or hybrid alternatives when shopping in the luxury‑compact segment.
