22 MPG combined might not be class-leading in 2017, but it’s an acceptable figure for the Lexus GS 350 F Sport. This car blends sharp driving with traditional Lexus comfort and reliability, and its naturally aspirated V6 delivers a responsiveness that many drivers still want. Fuel economy is a consideration, of course, but it’s secondary to the overall driving experience and the prestige of the F Sport badge.

City and highway performance

The EPA estimates for the 2017 Lexus GS 350 F Sport are 19 MPG in the city and 27 MPG on the highway. These numbers reflect the car’s mix of performance and luxury. The city figure is OK for a V6-powered sedan of this size, given the stop-and-go traffic and the engine’s harder work at lower speeds. The 27 MPG highway rating is more impressive, suggesting that the eight-speed automatic transmission is well-optimized for cruising. The tall overdrive gears allow the engine to run at lower RPMs at higher speeds, which helps save fuel on long journeys.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Lexus GS 350 F Sport at $2,650. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s important to understand that this is just an estimate; your actual fuel costs will vary depending on your driving, the type of fuel you use, and local prices. For example, someone who primarily drives in the city and accelerates quickly will likely spend significantly more than $2,650 per year, which is something to keep in mind.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy can often differ. Drivers report a range of MPG figures that vary according to driving style, traffic, and terrain. Expect to see numbers close to the EPA estimates if you drive conservatively and spend a good portion of your time on the highway. However, aggressive driving or heavy city traffic will likely reduce your MPG to the 17-18 MPG range. The F Sport encourages a spirited driving style, which can easily sacrifice fuel economy for fun.

How it compares

The GS 350 F Sport’s fuel economy is competitive within its class. The BMW 540i xDrive, for instance, gets 22 MPG combined, but its turbocharged engine delivers power in a different way. The Mercedes-Benz E400 4MATIC, another popular competitor, achieves a similar 22 MPG combined rating. The Acura TLX V6 SH-AWD offers slightly better fuel economy at 24 MPG combined, but it doesn’t provide the same luxury or prestige as the Lexus. Buyers choose the GS 350 F Sport knowing they may not have the absolute best fuel economy, as they prioritize the Lexus’s reputation for reliability, the smooth power delivery of its naturally aspirated engine, and the sporty character afforded by the F Sport package. Click to browse GS MPG across all years.

Tips to maximize efficiency

The 2017 Lexus GS 350 F Sport features an eight-speed automatic transmission with paddle shifters, which can be used to improve fuel economy. In situations where you know you will not need to accelerate quickly, upshift early to keep the engine in its most efficient range. Doing so will help minimize fuel consumption without greatly affecting the driving experience.

The GS 350 F Sport’s drive mode select system includes an “Eco” mode. Use this mode when fuel economy is a priority. It adjusts throttle response and climate control settings to maximize efficiency. The difference might be subtle, but over time, it can add up. While in Eco mode, accelerate gently from a stop and avoid hard braking to further improve fuel economy.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which decreases fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the driver’s side doorjamb. A simple maintenance check can have a surprisingly significant effect on fuel efficiency.

Reduce unnecessary weight in your vehicle. Every extra pound requires more energy to move. Remove any items from your trunk or backseat that you don’t need. Even small amounts of weight can slightly affect fuel economy over time. For information related to other models, view all Lexus fuel economy data.