The 2021 Toyota 4Runner 4WD, with its strong 4.0L V6, gets 17 MPG combined. Its dedicated fanbase acknowledges this number, but for them, rugged dependability and off-road capability are more important than fuel efficiency. These buyers want to conquer trails and endure harsh conditions, viewing fuel stops as an inevitable part of the adventure, not a reason to choose a different vehicle. This vehicle is purpose-built for a specific mission, and its fuel economy reflects that mission’s demands.

City and highway performance

The 4Runner’s EPA estimates break down to 16 MPG in the city and 19 MPG on the highway. The city figure reflects the inherent inefficiency of stop-and-go driving with a naturally aspirated V6 in a vehicle with a high center of gravity and a curb weight exceeding 4,700 pounds. The highway number, while slightly better, is still hampered by the 4Runner’s boxy shape, which faces aerodynamic challenges at higher speeds. The dated five-speed automatic transmission doesn’t help either; modern transmissions with more gears allow engines to operate at their most efficient RPM range more often. However, that simple five-speed is also known for its reliability, a major plus for those venturing far from civilization.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,600 for the 2021 Toyota 4Runner 4WD. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway. The calculation also uses the national average fuel price at the time of evaluation. Keep in mind that your actual fuel costs will vary depending on your individual driving habits, local fuel prices, and the type of driving you do. If you spend more time off-road or towing, expect that annual cost to climb considerably. You can view all Toyota fuel economy data on this site.

Real-world expectations

The EPA provides a standardized estimate, but real-world fuel economy can vary significantly. Many 4Runner owners report seeing numbers close to the EPA estimates in everyday driving. Expect lower figures if you frequently engage the four-wheel-drive system, add aftermarket accessories like roof racks or larger tires, or live in an area with hilly terrain. Aggressive acceleration and hard braking will also negatively impact your MPG. Conversely, gentle acceleration and consistent highway speeds can increase your mileage slightly. Always check 4RUNNER MPG across all years for alternate real-world observations.

How it compares

The 4Runner lags behind other mid-size SUVs in fuel economy. For example, a Honda Passport with its standard V6 and all-wheel drive achieves 21 MPG combined. The Jeep Grand Cherokee, with its available 3.6L V6 and four-wheel drive, manages 21 MPG combined using the EPA’s testing methodology. Even a more off-road focused Jeep Wrangler Unlimited with the 2.0L Turbo engine and four-wheel drive rates at 22 MPG combined. The difference in fuel economy is significant, and prospective buyers must consider this. However, those considering the 4Runner often value its legendary reliability and off-road capability over maximizing MPG. They might also consider the resale value or the longetivity, not just the cost of gas.

Tips to maximize efficiency

The 4Runner’s fuel efficiency isn’t going to win any awards, but there are several ways to make the most of each tank. Keep your tires properly inflated, as underinflated tires create more rolling resistance and decrease fuel economy. Check your tire pressure regularly, especially before long trips.

Avoid aggressive driving habits like hard acceleration and braking. Gradual acceleration and maintaining a steady speed can significantly improve your MPG. Anticipate traffic flow and avoid unnecessary braking whenever possible.

Reduce extra weight in the vehicle. Remove any unnecessary cargo from the inside and consider removing roof racks or other accessories when they’re not needed. Extra weight adds to fuel consumption, particularly in a vehicle that already makes so much power.

Keep your vehicle properly maintained. Regular oil changes, air filter replacements, and spark plug maintenance can all contribute to optimal engine performance and fuel efficiency. Following the manufacturer’s recommended maintenance schedule is key.

Consider using cruise control on the highway. Maintaining a consistent speed can help prevent unintended speed fluctuations and optimize fuel consumption. Be mindful of terrain and traffic conditions, and disengage cruise control when necessary.