100 MPG combined is a figure that demands attention, but it’s vital to understand what it represents for the 2024 Tesla Model X. This isn’t your typical gasoline-powered SUV where 100 MPG would be impossible. The Model X is an all-electric vehicle, and that number reflects its efficiency in terms of miles per gallon equivalent (MPGe). This is a vehicle bought by those who prioritize cutting-edge technology, blistering acceleration, and a reduced reliance on fossil fuels, even if the initial purchase price is substantial.

City and highway performance

The EPA rates the 2024 Tesla Model X at 104 MPGe in the city and 96 MPGe on the highway. This slightly higher city rating is common for electric vehicles due to regenerative braking, which captures energy during deceleration and feeds it back into the battery. In stop-and-go city driving, the Model X can use regen more frequently, enhancing its efficiency. The highway figure, while still impressive, reflects the energy required to overcome aerodynamic drag at higher speeds. These figures showcase the Model X’s impressive ability to efficiently use its electrical energy, no matter where it is being driven.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2024 Tesla Model X is $750. This figure is based on driving 15,000 miles per year and using the national average electricity price. It’s important to remember that electricity prices vary significantly depending on your location and charging habits. Charging primarily at home during off-peak hours will likely result in an even lower annual cost, while relying solely on public fast-charging could potentially increase it. This $750 figure is more indicative of what driving a Model X *could* cost versus a guarantee.

Real-world expectations

While the EPA’s ratings provide a standardized benchmark, real-world fuel economy can vary based on several factors. Driving style, weather conditions, and payload all impact the Model X’s efficiency. Aggressive acceleration and high speeds will drain the battery faster, reducing the overall range. Cold weather also decreases battery performance.

However, many Model X owners achieve range figures close to the EPA estimates under normal driving conditions. For a better grasp of all Tesla fuel economy data, it is best to consult owners’ forums.

How it compares

Compared to other electric SUVs, the Model X’s efficiency fares quite well. The Audi e-tron, despite being a luxury electric SUV, achieves only 78 MPGe combined. The Jaguar I-Pace is in a similar range, with an EPA rating of 76 MPGe combined. Even some of the Model X’s internal competition like the Tesla Model Y Long Range gets 129 MPGe combined, so it is important to assess if the Model X’s advantages in the ride quality, cabin space, or falcon-wing doors are worth it for the drop in fuel economy.

Looking at gasoline competitors, this is where the Model X truly shines. A gasoline-powered SUV of similar size and performance to the Model X, like a BMW X5 xDrive40i, barely ekes out 23 MPG combined. For a family who might cross-shop these vehicles, the difference represents a major operating cost savings.

Tips to maximize efficiency

Precondition the battery before driving. Using the Tesla app, you can warm up the battery pack while the vehicle is still plugged in. This can significantly improve efficiency, particularly in cold weather, by ensuring the battery is at its optimal operating temperature before you begin your journey.

Use regenerative braking effectively. Experiment with the different regeneration settings to find the level that suits your driving style. Maximizing regen will capture more energy and reduce your reliance on the friction brakes, extending your range. It can take time to get used to one-pedal driving, but it’s a worthwhile skill.

Optimize your driving habits. Avoid aggressive acceleration and maintain a steady speed, especially on the highway. Using Autopilot’s Traffic-Aware Cruise Control can help you maintain a consistent speed and optimize your energy consumption automatically. This is far more useful than with a normal gas car.

Plan your charging stops strategically. Use the Tesla navigation system to plan your routes and identify Supercharger locations along the way. If you mainly use the Model X for commuting, charge at home. Check MODEL MPG across all years to note any year-to-year differences.