17 MPG combined isn’t going to win the 2023 Toyota 4Runner any fuel-sipping awards, but that figure is almost entirely irrelevant to the target buyer. This isn’t a vehicle purchased for its efficiency. It’s selected for its reliable durability, proven off-road capability, and unwavering reputation, attributes that often come at the expense of fuel economy.

City and highway performance

The 4Runner’s EPA estimates break down to 16 MPG in the city and 19 MPG on the highway. The reason is the aging but reliable 4.0L V6 engine, paired with a five-speed automatic transmission. While dependable, this powertrain lacks the fuel management features of more modern engines. The short gearing, designed to aid in crawling over rocks and navigating tough terrain, works against optimal fuel efficiency at higher speeds. Expect the lower city MPG when navigating stop-and-go traffic.

The highway figure, while slightly better, still lags behind many competitors, suggesting that long road trips will necessitate frequent stops at the pump.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2023 Toyota 4Runner 4WD 4.0L 6-cyl is $2,600. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is an estimate. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and where you live, particularly given the fluctuations in gasoline prices. However, $2,600 provides a solid benchmark against which to compare the 4Runner’s fuel expenses with those of other SUVs, or even other vehicles within the all Toyota fuel economy data lineup.

Real-world expectations

While the EPA provides a standardized estimate, real-world fuel economy can vary significantly. Some 4Runner owners report numbers that hover around the EPA estimates. Some note figures slightly lower, especially if the vehicle is frequently used off-road or for towing. Factors that impact real-world MPG include driving style (aggressive acceleration and braking will hurt fuel economy), tire pressure (underinflated tires increase rolling resistance), and cargo weight (carrying heavy loads reduces efficiency). The biggest variable is likely going to be the terrain: hilly or mountainous areas will naturally decrease fuel efficiency compared to flat terrain. Remember to consult 4RUNNER MPG across all years for more historical context.

How it compares

The 4Runner’s fuel economy lags behind most of its competition. For example, the Jeep Grand Cherokee, with its standard 3.6L V6, manages around 22 MPG combined in 4×4 guise. Even more off-road-focused Wrangler Rubicon models with the 2.0L turbo engine can achieve similar or slightly better fuel economy. The Ford Bronco, a direct competitor, boasts up to 20 MPG combined with its base 2.3L EcoBoost engine. However, buyers considering the 4Runner often prioritize long-term reliability and off-road prowess over maximizing MPG. The Toyota’s reputation for longevity often outweighs its thirstier appetite for gasoline in the eyes of its loyal fanbase.

Tips to maximize efficiency

While the 4Runner is never going to be a fuel-sipping champion, there are steps you can take to optimize efficiency. Avoid aggressive acceleration and maintain a steady speed, especially on the highway. The 4.0L V6 responds better to smooth, deliberate inputs than to sudden bursts of power.

Ensure your tires are properly inflated. Check the sticker on the driver’s side doorjamb for the recommended tire pressure and make it a habit to check your tires regularly, especially before long trips. Underinflated tires increase rolling resistance, decreasing fuel economy.

Reduce excess weight. Carrying unnecessary cargo adds strain to the engine and reduces fuel efficiency. Remove any items from the vehicle that you don’t need on a regular basis, particularly heavy items like tools or sporting equipment.

Service the vehicle according to the manufacturer’s recommendations. Regular maintenance, including oil changes and air filter replacements, ensures that the engine runs efficiently. A poorly maintained engine will invariably consume more fuel.

Consider avoiding aftermarket modifications that could negatively impact fuel economy. Lift kits, larger tires, and roof racks can all increase drag and reduce MPG. Only add modifications if you truly need them for your intended use of the vehicle.