The 2017 Tesla Model S AWD, 90D gets 104 MPG combined, making it an efficient luxury car and a leader in electric vehicle technology when it was new. This figure, more accurately reflecting MPGe (miles per gallon equivalent), represents energy consumption comparable to gasoline vehicles, showing the Model S 90D’s performance and reduced running costs.

City and highway performance

The EPA estimates for the 2017 Model S 90D are very consistent across different driving conditions. City driving is rated at 102 MPGe, demonstrating the electric powertrain’s efficiency in stop-and-go traffic, where regenerative braking captures energy that would be lost in a conventional gasoline car. The highway rating of 107 MPGe reflects its aerodynamic design and efficient motor, allowing sustained high-speed cruising with minimal energy consumption. This close correlation between city and highway figures underlines the Model S 90D’s suitability for various driving patterns, whether for commuting in urban areas or taking longer road trips. Those seeking all Tesla fuel economy data will find this benefit common across the lineup.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Tesla Model S 90D to be $700. This calculation is based on driving 15,000 miles per year and using the national average electricity prices at the time of testing, costs which have obviously shifted over time. This figure represents significant savings compared to similar-sized gasoline-powered luxury cars, where annual fuel costs can easily exceed $2,000 or more. Individual electricity costs will vary based on location, time of use, and charging habits, but this $700 figure offers a useful baseline for understanding the potential long-term cost benefits of owning an electric vehicle like the Model S 90D.

Real-world expectations

While the EPA estimates provide a valuable benchmark, real-world MPGe can change based on driving style, ambient temperature, and use of features like climate control. Aggressive acceleration and high-speed driving will decrease efficiency, while gentle acceleration and working the regenerative braking will improve it. Cold weather can also impact battery performance, reducing range and efficiency. Most owners report achieving figures close to the EPA estimates in typical daily driving. Tesla’s over-the-air software updates have often improved efficiency over time, optimizing battery management and motor control. Those looking at MODEL MPG across all years will see how these improvements can change over time.

How it compares

Compared to its gasoline-powered luxury sedan competitors, the 2017 Tesla Model S 90D uses less gas. For instance, the 2017 BMW 540i xDrive achieves around 23 MPG combined, while the Mercedes-Benz E400 4Matic manages approximately 22 MPG combined. Even hybrid competitors like the 2017 Lexus GS 450h, with a combined rating of 31 MPG, are less efficient than the Model S 90D. This comparison highlights a key reason why buyers choose the Model S 90D: a desire to reduce their environmental impact and lower their running costs without sacrificing performance or luxury. The compromise they often accept is the initial higher purchase price of the electric vehicle and adapting to charging infrastructure planning.

Tips to maximize efficiency

Use regenerative braking. Tesla’s regenerative braking system recovers kinetic energy when decelerating, turning the motor into a generator and putting energy back into the battery. Experiment with the “Standard” and “Low” settings to find what best suits your driving style and maximizes energy recapture.

Precondition the battery before driving, especially in cold weather. Use the Tesla app to warm or cool the battery while the car is plugged in. This draws power directly from the grid instead of from the battery itself, preserving your range and optimizing the battery’s performance from the start of your journey.

Monitor your tire pressure regularly. Properly inflated tires reduce rolling resistance, which improves efficiency. Check the recommended tire pressure for your Model S 90D, typically found on a sticker inside the driver’s side doorjamb, and maintain it for best performance.

Avoid unnecessary weight in the vehicle. Extra cargo adds to the vehicle’s overall weight, requiring more energy to accelerate and maintain speed. Remove items you don’t need to carry regularly to improve efficiency, especially on longer trips.