17 MPG combined. That figure isn’t going to win any fuel efficiency awards. But for the 2023 Toyota 4Runner 2WD with its reliable 4.0L V6, it’s a purposeful trade-off. This isn’t a vehicle designed for hypermilers. This is for the individualist, the weekend explorer, the driver who prioritizes reliability, durability, and off-road capability (even in 2WD form) over sipping fuel. They are buying capability and longevity, and accepting the fuel consumption as a cost of entry.

City and highway performance

The EPA estimates suggest 16 MPG in the city and 19 MPG on the highway. The slightly higher number on the open road is primarily due to the relative efficiency of the 4.0L V6 when it is not constantly accelerating from a stop. The 4Runner is not aerodynamically sleek. Its boxy shape is a boon for cargo capacity and visibility, but it contributes to significant drag at higher speeds. This means real-world highway figures can dip below 19 MPG if you frequently cruise above 70 mph or encounter strong headwinds. Stop-and-go city driving will punish the fuel tank more than a steady commute. Aggressive acceleration and hard braking will exacerbate the already thirsty engine.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Toyota 4Runner 2WD 4.0L 6-cyl at $2,600. This is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Individual fuel costs will vary based on local fuel prices and personal driving habits. Drivers who cover more than 15,000 miles annually, or those living in areas with higher fuel costs, can expect to spend considerably more. Potential owners should carefully consider this figure, but rarely does it deter them from the 4Runner’s appeal.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy is heavily influenced by driving style, terrain, and vehicle load. Owners who frequently use their 4Runner for towing, hauling cargo, or navigating challenging terrain will likely see fuel economy figures below the EPA estimates. Drivers who spend most of their time on relatively flat highways and adopt a smooth, conservative driving style may be able to achieve slightly better results. Routine maintenance, such as ensuring proper tire inflation and keeping up with scheduled service, also plays a role. A neglected 4Runner will perform worse than one that is well-maintained.

Many owners find that a realistic average is around 16-18 MPG on a day-to-day basis. Expect it to fluctuate, and don’t expect miracles.

How it compares

The 4Runner’s fuel economy is worse than many of its competitors, particularly those with more modern powertrains. The Jeep Grand Cherokee 2WD with the standard 3.6L V6, for example, manages a combined 22 MPG. Even the heavier Dodge Durango 2WD with its 3.6L V6 achieves 21 MPG combined. This underscores the 4Runner’s focus on ruggedness and simplicity, relying on a proven engine and transmission combination rather than embracing the latest fuel-saving technologies. Drivers looking at all Toyota fuel economy data will immediately see the 4Runner near the bottom of the list. Those considering the 4RUNNER MPG across all years should observe the consistent fuel economy numbers throughout its production, highlighting its resistance to chasing fuel economy gains. The lack of significant improvements speaks to its steadfast mission, which is not hyper-efficiency.

Tips to maximize efficiency

While the 4Runner is never going to be fuel efficient, simple changes in driving habits can help to squeeze a bit more mileage from each gallon. Avoid aggressive acceleration and hard braking. The 4.0L V6 responds well to a gentle foot, and minimizing sudden changes in speed reduces fuel consumption significantly. Anticipate traffic flow and maintain a consistent speed whenever possible.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the manufacturer’s recommended specifications, which can be found on the tire placard on the driver’s side door jamb.

Reduce unnecessary weight. Carrying extra weight in your 4Runner’s cargo area puts additional strain on the engine. Remove any unnecessary items to improve fuel economy, especially if you do not use the extra gear daily.

Consider your driving environment. Avoid driving at high speeds whenever possible, as aerodynamic drag increases exponentially with speed. Plan routes that minimize stop-and-go traffic as it wastes fuel.

Keep up with regular maintenance. A well-maintained engine is an efficient engine. Follow the manufacturer’s recommended maintenance schedule for oil changes, air filter replacements, and tune-ups. Regular maintenance ensures that all components are functioning optimally, translating to improved fuel economy.