16 MPG combined. Let’s be blunt: you’re not buying a supercharged, short-wheelbase 2023 Land Rover Defender 90 with a 5.0L V8 because you’re prioritizing fuel efficiency. You’re buying it for its immense off-road capability, its unmistakable presence, its surprisingly rapid acceleration, and the sheer thrill of owning a modern interpretation of an icon. The relatively poor consumption is simply the price of admission.

City and highway performance

The EPA estimates for the Defender 90 V8 break down to 15 MPG in the city and 19 MPG on the highway. These figures reflect the realities of a powerful engine working hard to overcome the considerable weight (over 5,400 lbs) and aerodynamic challenges of a vehicle designed for scaling mountains, not slicing through the air. The eight-speed automatic transmission, while smooth and responsive, has its work cut out for it managing the engine’s prodigious output. Highway driving can see slightly better efficiency if you keep your foot out of the throttle, but the temptation to unleash the V8’s roar is ever-present. The Defender 90’s short wheelbase also doesn’t lend itself to the same highway stability found in longer SUVs, sometimes inviting more aggressive driving inputs and further harming economy.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2023 Land Rover Defender 90 V8 will be $3,600. 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 prices. This number will likely be higher for owners who do a lot of city driving, regularly indulge in the engine’s power, or live in areas with higher than average gasoline prices. Buyers considering this trim should factor this cost into their overall ownership budget. You can find all Land Rover fuel economy data on FuelEconomyHub.com.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy can vary significantly. Factors like driving style, terrain, weather conditions, and even tire pressure will all play a role. Expect to see numbers close to the EPA estimates if you drive conservatively, but don’t be surprised if you average lower, especially in urban environments. Off-road driving, which this Defender is designed for, will dramatically decrease fuel efficiency. Owners who regularly tow will also experience a significant drop in MPG. It’s crucial to understand that the official MPG figure is a guide, not a guarantee. For a deeper dive into ROVER MPG across all years, you can check out our resources.

How it compares

The Defender 90 V8’s fuel economy lags behind many of its competitors. For example, the BMW X3 M, with its 3.0L inline-six, manages a combined 16 MPG but 21 MPG on the highway. Even the larger and heavier Range Rover Sport, with its supercharged V6, achieves around 19 MPG combined. The Jeep Wrangler Rubicon 392, another off-road focused vehicle with a V8, gets similar fuel economy numbers. However, someone cross-shopping a Defender 90 V8 probably deems all these competing vehicles unsuitable – they want the unique Defender styling, the short wheelbase, and the available power. They see the fuel consumption as a necessary compromise. It’s simply part of the ownership experience of this iconic 4×4.

Tips to maximize efficiency

Given the Defender 90 V8’s inherent thirst, extracting improvements requires a deliberate approach. Gentle acceleration is key. The supercharged V8 is responsive, but every burst of power comes at a cost. Smooth and steady driving will make a noticeable difference over aggressive starts and stops.

Tire pressure significantly impacts fuel economy. Regularly check and maintain the recommended tire pressure, which can be found on the doorjamb sticker. Properly inflated tires reduce rolling resistance and improve fuel efficiency, particularly on long highway drives.

Minimize unnecessary weight. Removing excess cargo from the vehicle reduces the load on the engine, resulting in better fuel economy. While the Defender 90 is built to carry plenty of gear, only transport what you actually need for the journey.

Avoid prolonged idling. Idling consumes fuel without covering any distance. If you anticipate stopping for more than a minute or two, turn off the engine. Modern vehicles are designed for frequent starts and stops, and restarting is more fuel-efficient than idling for an extended period.