31 MPG combined is a good figure for the 2016 Lexus GS 450h, a mid-size luxury sedan that prioritizes refinement. Buyers drawn to the GS 450h aren’t solely focused on maximizing fuel efficiency, but they appreciate the hybrid drivetrain’s ability to deliver respectable economy without sacrificing performance or the plush Lexus experience. It aligns with their desire for a guilt-free, yet undeniably luxurious, driving experience.

City and highway performance

The GS 450h excels in urban environments, achieving an EPA-estimated 29 MPG in the city. This is where the hybrid system truly comes into its own, using electric power for low-speed maneuvers and stop-and-go traffic. The transitions between electric and gasoline power contribute to a smooth and efficient drive. On the highway, the GS 450h returns a respectable 34 MPG. While not class-leading, it’s a solid figure that allows for comfortable and economical long-distance cruising. The 3.5L V6 engine provides ample power for confident overtaking and highway merging. This duality, efficient city driving and relaxed highway performance, is a key selling point for GS 450h buyers.

Annual fuel cost

According to EPA estimates, the annual fuel cost for the 2016 Lexus GS 450h is $1,850. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price for premium gasoline (required for optimal performance). While fuel prices fluctuate, this $1,850 estimate provides a benchmark for understanding the predicted running costs of the vehicle. It’s a valuable metric when comparing the GS 450h to other vehicles in its class. Remember that individual driving habits and local fuel prices can influence the actual amount you spend on fuel.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy can vary depending on driving style, traffic conditions, and terrain. Aggressive acceleration, frequent hard braking, and consistently high speeds can all negatively impact fuel efficiency. Conversely, a smooth and deliberate driving style, coupled with anticipating traffic flow, can help you achieve or even exceed the EPA estimates. Owners in warmer climates may also find their fuel economy slightly improves due to optimal battery performance, while colder temperatures can temporarily reduce the battery’s efficiency. Generally, expect to see figures very close to the EPA’s, assuming a mix of driving conditions.

How it compares

The GS 450h’s fuel economy should be understood within the context of its competitive set. The non-hybrid GS 350, for example, achieves only 23 MPG combined, highlighting the hybrid’s advantage. Looking beyond Lexus, the BMW 535i (no longer in production but relevant for comparison) managed around 23 MPG combined. The Infiniti Q50 Hybrid, with its own focus on performance and fuel economy, offered around 29 MPG combined, making the GS 450h a slightly better performer in official tests. Buyers choosing the GS 450h value both fuel efficiency and the prestige of the hybrid badge, differentiating it from those prioritizing outright performance or lower initial cost in the non-hybrid competitors. Therefore, the difference of a few MPG might be outweighed by Lexus reliability and the smooth hybrid driving experience.

Tips to maximize efficiency

Take advantage of the GS 450h’s hybrid system by anticipating traffic and braking smoothly. Gentle braking allows the regenerative braking system to capture energy and recharge the battery, maximizing efficiency. Avoid sudden acceleration and hard braking, which can significantly reduce fuel economy.

Ensure your tires are properly inflated, as low tire pressure increases rolling resistance and reduces fuel efficiency. Check your owner’s manual for the recommended tire pressure for your specific GS 450h model and tire size. Under-inflated tires can also negatively affect handling and tire wear.

Minimize unnecessary weight in the vehicle. Carrying extra cargo reduces fuel economy, especially in city driving with frequent acceleration and braking. Remove any items you don’t need to improve your MPG.

Plan your routes wisely to avoid congested areas and stop-and-go traffic. Using navigation apps that provide real-time traffic updates can help you find the most efficient routes and minimize time spent idling, thereby improving fuel economy. Remember that on long trips with steady speed, you may see numbers similar to those shown in GS MPG across all years.

Keep up with regular maintenance, including oil changes and air filter replacements. A properly maintained engine runs more efficiently, which translates to better fuel economy. Refer to your owner’s manual for the recommended maintenance schedule for your 2016 Lexus GS 450h and explore all Lexus fuel economy data for more insights.