Yes. For its era and segment, the IS250 delivers respectable fuel economy, typically around 21 mpg in city driving and about 30 mpg on the highway for rear-wheel-drive models, with all-wheel-drive versions usually a bit lower.
How the numbers break down
The IS 250 uses a 2.5-liter V6 and is paired with a six-speed automatic transmission in most U.S. markets. EPA estimates vary slightly by year and drivetrain, but the typical ranges across 2006–2013 models are:
- Rear-wheel-drive (RWD) with automatic: about 21 mpg city / 30 mpg highway.
- All-wheel-drive (AWD): about 20 mpg city / 28 mpg highway.
Actual fuel economy depends on conditions like tire pressure, maintenance, and driving style. Some early packages and years used different gearing, which can shift figures a bit.
Real-world performance and how to maximize mpg
EPA ratings offer a baseline, but real-world fuel economy usually sits lower. The following factors typically have the biggest impact on mileage in the IS250:
- Drivetrain: RWD generally yields higher mpg than AWD due to reduced drivetrain losses.
- Maintenance: fresh spark plugs, clean air filters, and properly functioning oxygen sensors support efficiency.
- Tire condition and pressure: underinflated or low-quality tires increase rolling resistance and reduce mpg.
- Driving style: aggressive accelerations and frequent high-speed driving drain fuel economy.
- Load and aero drag: roof racks, heavy cargo, and frequent high-speed driving can reduce mpg.
With these in mind, most drivers achieve real-world mpg in the high teens to low 20s in city driving and around 28–32 mpg on highways under favorable conditions.
Buying used: mpg considerations
When shopping for a used IS250, verify the drivetrain (RWD vs AWD) and review maintenance history. Fuel economy can vary based on how the car was cared for, tire choices, and whether any engine or exhaust modifications were made.
- Check drivetrain configuration and ensure the listed mpg aligns with that setup.
- Look for a clean maintenance record, especially regarding spark plugs, air filters, and tires.
- Ask for any available fuel economy data from previous owners or service records.
In general, a well-maintained IS250 in good condition should perform close to the EPA estimates for its drivetrain, but real-world results will vary based on the factors above.
Summary
The Lexus IS250 offers sensible fuel economy for its class and era. Rear-wheel-drive versions typically achieve around 21 mpg in the city and 30 mpg on highways, with AWD trims lower. Real-world mileage depends on maintenance, tires, and driving habits. If maximum efficiency is a priority, consider newer Lexus models or hybrids, but for many buyers the IS250 balances performance and economy effectively.