17 MPG combined is what you get with the 2020 Toyota 4Runner 4WD and its reliable 4.0L V6 engine. While that number might surprise some considering hybrid SUVs and turbocharged crossovers, it’s a figure closely tied to the 4Runner’s lasting appeal. This isn’t a vehicle prioritizing fuel efficiency; it’s a body-on-frame design made for strong dependability and off-road capability, and its owners generally accept the fuel cost for the performance it provides.

City and highway performance

The EPA estimates for the 2020 4Runner 4WD are 16 MPG in the city and 19 MPG on the highway. The city figure reflects the demands on the engine from stop-and-go traffic and the vehicle’s considerable weight. The highway number, while a little better, is still modest because of the 4Runner’s aerodynamic shape, which isn’t as fuel efficient as modern SUVs. The five-speed automatic transmission, while reliable, isn’t as efficient as the six, eight, and ten-speed transmissions in newer vehicles, which further impacts fuel consumption. Expect variation based on driving style and terrain. A 4Runner on tough trails will likely see fuel economy drop well below EPA estimates, while a careful driver on relatively flat highways might get close to, or even slightly exceed, 19 MPG.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Toyota 4Runner 4WD at $2,600. This is based on 15,000 miles of driving per year and assumes national average fuel prices. This estimate is just an approximation, and your actual fuel costs will change depending on your driving habits, the type of fuel you use, and fluctuating gasoline prices. If you consistently drive more aggressively or live where fuel costs are higher, expect to spend more than $2,600 per year to fuel your 4Runner.

Real-world expectations

The EPA figures are only a starting point, as real-world fuel economy often differs. Many 4Runner owners report averaging around 15-18 MPG in mixed driving conditions. Factors like tire size (especially if you’ve upgraded for off-roading), roof racks, and extra weight from equipment and passengers all decrease fuel efficiency. The 4Runner’s full-time four-wheel-drive system provides excellent traction in tough situations, but it also adds resistance and lowers MPG compared to two-wheel-drive vehicles. Some owners may try to drive efficiently to get better results, but the 4Runner’s inherent design and purpose make it unlikely to consistently reach or exceed the EPA highway estimate during normal driving.

How it compares

Compared to other SUVs in its class, the 2020 4Runner’s fuel economy is lower. The Jeep Grand Cherokee, for example, has a more efficient base V6 engine, achieving around 21 MPG combined. Even the Dodge Durango, a larger SUV, can reach around 19 MPG combined with its V6. Looking outside the body-on-frame SUV segment shows even bigger differences. Crossover SUVs like the Honda Passport (22 MPG combined) and the Nissan Murano (23 MPG combined) achieve significantly better fuel economy, though they sacrifice off-road capability for on-road comfort and efficiency. For the 4Runner buyer, these comparisons often matter less because they are choosing a vehicle for its ruggedness and legendary reliability, qualities that many consider worth the fuel cost. Those seeking better fuel efficiency can browse all Toyota fuel economy data to see if a different model fits their needs. You can also explore 4RUNNER MPG across all years to compare efficiency across generations.

Tips to maximize efficiency

The 4Runner will never get amazing gas mileage, but you can still take steps to optimize its fuel efficiency. Avoid aggressive acceleration and braking. The 4.0L V6 responds quickly, but speeding up and slowing down burns through fuel fast. Driving at a steady speed and anticipating traffic can make a difference.

Make sure your tires are properly inflated. Underinflated tires create more rolling resistance, making the engine work harder and use more fuel. Check your tire pressure regularly and inflate them to the manufacturer’s recommended specifications, which you can find on a sticker inside the driver’s side doorjamb.

Reduce extra weight. Removing unneeded cargo from your 4Runner can improve fuel economy, even slightly. Look at what you’re carrying and remove anything not essential for your daily commute or planned trips because every pound matters.

Service your 4Runner according to the manufacturer’s recommendations. Regular maintenance, including oil changes, air filter replacements, and spark plug replacements, keeps your engine running efficiently. A well-maintained engine uses less fuel and performs optimally.

Limit use of four-wheel drive to when you really need it. Leaving the 4Runner in four-wheel-drive on dry pavement adds strain on the drivetrain and reduces fuel economy. Switch to two-wheel-drive when road conditions allow to minimize fuel consumption.