An EPA-estimated 92 MPGe (miles per gallon equivalent) combined is a strong indicator of the 2017 Tesla Model X AWD – 90D’s capabilities. This figure shows that a seven-passenger SUV, with impressive acceleration and long-range travel, can operate without using any gasoline. The Model X 90D appealed to early adopters and tech enthusiasts who valued technology, performance, and a commitment to lower fuel costs, and they accepted the car’s quirks.

City and highway performance

The EPA says the Model X 90D gets 90 MPGe in the city and 94 MPGe on the highway. The electric powertrain performs well in sustained cruising conditions, allowing it to operate near its peak efficiency on the highway. Regenerative braking helps recapture energy in stop-and-go city driving, keeping the city MPGe close to the highway number. These figures are impressive for any SUV, especially one with the Model X’s performance and cargo capacity.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Tesla Model X 90D is $850. This assumes 15,000 miles of driving per year, with a mix of city and highway use, and uses the national average electricity prices at the time of the calculation. Your actual electricity costs will vary depending on your local utility rates and driving habits. Even with regional variations in electricity prices, the Model X 90D could offer significant savings compared to gasoline-powered SUVs of similar size and performance.

Real-world expectations

The EPA provides standardized testing, but real-world range for the Model X 90D varies with driving style, ambient temperature, and use of climate control. Aggressive acceleration and sustained high speeds will decrease efficiency, while gentle driving and pre-conditioning the cabin while plugged in can maximize range. Owners often report a realistic range figure lower than the EPA’s estimate, especially in colder climates where battery performance is affected. If you understand these factors it is easier to plan longer trips and optimize energy consumption.

How it compares

Comparing to gasoline-powered SUVs illustrates how far technology has advanced. The closest competitors are premium SUVs. The 2017 Volvo XC90 T6 AWD gets 22 MPG combined. The 2017 BMW X5 xDrive35i is rated at 20 MPG combined. These traditional SUVs are less efficient than the Model X 90D. Even plug-in hybrid SUVs like the 2017 BMW X5 xDrive40e, with around 56 MPGe combined, fall short of the Model X 90D’s efficiency. For buyers prioritizing minimal running costs and environmental responsibility in a large and practical vehicle, the Model X 90D offers an advantage. Explore all Tesla fuel economy data to put it in context of the brand’s other models, or compare MODEL MPG across all years.

Tips to maximize efficiency

Use regenerative braking. The Model X offers adjustable regenerative braking settings. Experiment to find a level that suits your driving style and allows you to slow down effectively without using the friction brakes. This captures kinetic energy and returns it to the battery, extending your range.

Pre-condition the cabin while plugged in. Heating or cooling the interior of the Model X consumes energy. By pre-conditioning the cabin while the vehicle is still plugged into the charger, you can draw power from the grid, preserving your driving range.

Minimize aggressive acceleration. The Model X can accelerate quickly, but frequent hard acceleration drains the battery. Driving more smoothly will improve your efficiency.

Maintain proper tire pressure. Properly inflated tires reduce rolling resistance, which improves fuel economy. Check your tire pressure and inflate them to the recommended level, usually on a sticker inside the driver’s side door jamb.

Plan your routes strategically. Choose routes that avoid heavy traffic and steep inclines if possible. Stop-and-go driving and uphill climbs consume more energy. Careful route planning can help you optimize your efficiency and extend your range.