18 MPG combined is the number on the fuel economy sticker of a 2017 Toyota 4Runner 2WD with the 4.0L V6. It’s a number that doesn’t lie, but it also doesn’t tell the whole story. This isn’t a vehicle engineered for Prius-like efficiency; it’s a body-on-frame SUV designed for ruggedness, reliability, and the ability to tackle light off-road trails and haul gear comfortably. The 4Runner’s loyal following, outdoor enthusiasts, families who prioritize capability over crossover comfort, and those seeking Toyota’s legendary dependability, typically accept this fuel economy as a necessary trade-off.

City and highway performance

The EPA estimates of 17 MPG in the city and 21 MPG on the highway accurately reflect the 4Runner’s driving characteristics. In urban settings, the relatively heavy curb weight and the engine tuning for low-end torque contribute to the lower city figure. On the highway, the aerodynamics of a traditional SUV design, combined with a five-speed automatic transmission that requires higher engine speeds at cruising velocities, limit its efficiency. This is a vehicle more at home on a winding mountain road than a high-speed interstate sprint, and its fuel economy reflects that reality.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2017 Toyota 4Runner 2WD 4.0L 6-cyl is $2,450. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and where you live, as regional fuel prices fluctuate. However, expect this number to be your baseline for budgeting. You can view 4RUNNER MPG across all years to compare fuel costs among different model years to see if they match your intended use.

Real-world expectations

While the EPA provides standardized testing results, many 4Runner owners report similar or slightly lower real-world fuel economy, especially if they often engage in city driving, towing, or off-pavement excursions. For example, aggressive driving, such as frequent hard acceleration, can also significantly reduce fuel economy. Conversely, drivers who prioritize smooth acceleration and consistent highway speeds often find they can meet or even slightly exceed the EPA’s estimates. Always check all Toyota fuel economy data before making a purchase.

How it compares

Compared to other mid-size SUVs of the era, the 2017 4Runner’s fuel economy lags behind many of its more modern, crossover-based competitors. For instance, the 2017 Honda Pilot 2WD with its V6 engine achieves 22 MPG combined, while the 2017 Ford Explorer with its standard 3.5L V6 manages 20 MPG combined. Even the Jeep Grand Cherokee 4×2 with its 3.6L V6 betters the 4Runner at 21 MPG combined. However, these vehicles prioritize on-road comfort and fuel efficiency over the 4Runner’s off-road capability and strong construction. A more direct competitor in terms of off-road focus, like a 2017 Jeep Wrangler Unlimited, achieves a similar 18 MPG combined, albeit with a different driving experience. This highlights the fuel efficiency compromise that 4Runner buyers willingly accept for its inherent attributes.

Tips to maximize efficiency

Although the 4Runner isn’t known for its stellar fuel economy, there are steps you can take to improve its efficiency. Ensure your tires are properly inflated to the manufacturer’s recommended pressure. Underinflated tires increase rolling resistance, requiring the engine to work harder, and therefore consuming more fuel. Check your tire pressure regularly and maintain the correct level.

Reduce unnecessary weight inside the vehicle. Carrying extra cargo adds stress on the vehicle, increasing fuel consumption. Remove any items you don’t need, such as sporting equipment or tools, to minimize the load and improve fuel efficiency. Also, avoid using a roof rack or cargo carrier unless absolutely necessary, as these add aerodynamic drag that cuts mileage on the highway especially.

Practice smooth and consistent driving techniques. Avoid sudden acceleration and hard braking, as these actions waste fuel. Anticipate traffic conditions and maintain a steady speed whenever possible. Cruise control on the highway can help regulate your speed and improve fuel economy, especially on flat terrain.

Regular maintenance is critical for optimal fuel efficiency. Ensure your engine is properly tuned and that you follow the manufacturer’s recommended maintenance schedule, including oil changes and air filter replacements. A well-maintained engine runs more efficiently, resulting in better gas mileage. Don’t forget to ask your trusted mechanic to inspect your vehicle.