18 MPG combined is the stark reality for owners of the 2019 Toyota 4Runner 4WD with the 4.0L V6. But let’s be clear: buyers of this vehicle aren’t prioritizing fuel efficiency. They’re after legendary Toyota reliability, go-anywhere capability, and the rugged charm of a body-on-frame SUV, a dwindling breed. For them, the gas bill is simply the price of admission to a lifestyle.

City and highway performance

The EPA estimates the 2019 4Runner at 17 MPG in the city and 20 MPG on the highway. Remember that these figures are derived from standardized testing procedures and your mileage will vary considerably depending on driving style, load, terrain, and other factors. The 4Runner’s relatively inefficient drivetrain, along with its hefty weight and boxy aerodynamics, contribute to its thirst. The five-speed automatic transmission, while durable, is also a factor, lacking the efficiency-boosting gear ratios found in more modern transmissions. Owners will likely see city mileage dip further with frequent stop-and-go traffic, while achieving the EPA highway figure requires a conscious effort to maintain steady speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Toyota 4Runner 4WD at $2,450. This figure is based on driving 15,000 miles per year and using national average fuel prices. Factors like aggressive driving, off-roading, or simply using premium fuel (which isn’t required, but some owners may choose) can inflate this number substantially. For buyers considering the 4Runner, it’s vital to factor this expense into their overall ownership budget. Before making a final decision, compare this to all Toyota fuel economy data to see if another model makes more sense for your needs.

Real-world expectations

While the EPA provides a baseline, real-world fuel economy can be significantly different. Many 4Runner owners average closer to 15 MPG in mixed driving conditions. Towing, a common activity for 4Runner owners, will dramatically decrease fuel economy. Expect single-digit MPG figures when pulling heavier loads. Conversely, careful drivers who prioritize smooth acceleration and anticipate traffic can sometimes achieve slightly better-than-EPA numbers on long highway trips. It’s essential to temper expectations and understand that this is a vehicle built for reliability, not frugality. You can also review 4RUNNER MPG across all years to note trends within this model.

How it compares

The 4Runner’s fuel economy struggles when stacked against more modern SUVs. A 2019 Jeep Grand Cherokee 4×4 with the 3.6L V6 achieves a considerably better 21 MPG combined. Even the larger and more luxurious Lexus GX 460, which shares its platform with the 4Runner, manages a similar 16 MPG city / 19 MPG highway despite its more powerful V8. A Ford Explorer with a 2.3L EcoBoost engine offers significantly better mileage at 22 MPG combined. However, these vehicles often trade off-road capability and ruggedness for improved on-road manners and fuel efficiency, a tradeoff 4Runner buyers are often unwilling to make.

Tips to maximize efficiency

While the 4Runner will never be a fuel sipper, there are steps you can take to improve its efficiency. Avoid aggressive acceleration and hard braking. The 4.0L V6 is responsive, but heavy throttle use quickly depletes fuel. Anticipating traffic flow and maintaining a steady speed helps minimize unnecessary fuel consumption. The 4Runner rewards a gentle driving style.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder. Check your tire pressure regularly and inflate them to the recommended levels found on the driver’s side doorjamb. Don’t inflate beyond the maximum pressure listed on the tire itself, as this can negatively affect ride quality and handling.

Reduce excess weight. Carrying unnecessary cargo adds to the vehicle’s overall load, impacting fuel economy. Remove any items from the cargo area that aren’t essential for your daily driving or off-roading activities. Every hundred pounds removed can make a small but noticeable difference over time.

Consider using lower viscosity engine oil. While always using the manufacturer’s recommended oil is important, some owners have reported slight improvements in fuel economy by switching to a slightly thinner synthetic oil, such as 0W-20 (if compatible). Research thoroughly and consult with a trusted mechanic before making any changes to your engine oil.

Plan your trips strategically. Combining errands into a single trip minimizes cold starts, which are particularly fuel-intensive. Route planning apps can also help you avoid congested areas and find the most efficient routes. Avoid idling for extended periods, if you’re stopped for more than a minute, turn off the engine to save fuel.