19 MPG combined isn’t going to win any hypermiling contests, but it shows that the 2015 Toyota Tacoma 2WD with the 4.0L V6 prioritizes capability over fuel efficiency. This isn’t a commuter car, it’s a workhorse, a weekend adventure companion, and a reliable tool. The fuel economy is a known consequence of its strong engine and truck-based platform, a trade-off most owners gladly accept.

City and highway performance

The EPA estimates for the 2015 Tacoma 2WD 4.0L V6 place city driving at 17 MPG and highway driving at 21 MPG. These numbers illustrate that stop-and-go traffic hurts this particular powertrain. The 4.0L demands more fuel to get its weight moving from a standstill. On the open road, however, 21 MPG is achievable if you avoid flooring it and keep your speed relatively consistent. The 5-speed automatic transmission, while durable, doesn’t offer the fuel-sipping benefits of modern transmissions with more gears. Plan for fuel consumption to reflect the lower city MPG figure if you drive mostly in urban environments.

Annual fuel cost

The EPA estimates the annual fuel cost for this configuration of the 2015 Toyota Tacoma at $2,300. This figure is calculated based on driving 15,000 miles per year, using the national average fuel price. Your individual costs may vary depending on your driving habits, the type of fuel you use (regular unleaded is recommended), and gasoline prices. You can use this as a benchmark to assess your potential running costs. Your actual fuel expenditure will be lower if you drive fewer miles, or improve upon the EPA’s estimates.

Real-world expectations

Don’t expect miracles. The EPA’s numbers are the best case scenario for most, although some drivers might get a few extra miles per gallon with careful driving. Fuel economy will drop below the EPA estimates if you load the bed with tools or equipment, add aftermarket accessories that increase weight or aerodynamic drag, or frequently tow. The 4.0L V6 is known for its reliability and ample power, but it’s not particularly optimized for fuel efficiency. The typical Tacoma owner values the truck’s versatility and dependability more than saving fuel. It’s a conscious decision to prioritize capability.

How it compares

The 2015 Tacoma’s fuel economy is similar to other mid-size trucks of the same era. A 2015 Chevrolet Colorado 2WD with the 3.6L V6 is rated at 18 MPG combined, slightly better than the Tacoma. The Nissan Frontier 2WD with the 4.0L V6 achieves almost the same 17 MPG city, 22 MPG highway. Even the Ford Ranger, before its 2019 revival, generally had similar fuel economy figures. As you can see, this Tacoma’s fuel consumption aligns with its competitors. Modern trucks like the 2024 Toyota Tacoma offer better fuel economy in certain trims, but the older 4.0L V6 models are not nearly as efficient. For a broader perspective, examine all Toyota fuel economy data.

Tips to maximize efficiency

Avoid aggressive acceleration. The 4.0L V6 has plenty of power, but stomping on the accelerator from every stoplight will quickly drain the fuel tank. Gentle acceleration and anticipating traffic flow will help improve your MPG. Slow and steady wins.

Maintain proper tire inflation. Under-inflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended specifications, found on the driver’s side doorjamb.

Reduce unnecessary weight. Hauling around tools, equipment, or other cargo that you don’t need will negatively affect fuel economy. Remove any unnecessary items from the bed and cab of the truck to lighten the load.

Consider using cruise control on the highway. Maintaining a constant speed can improve fuel economy, especially on long stretches of highway. Disengage cruise control when approaching hilly terrain or merging onto the highway.

Service the engine. Regular maintenance, including oil changes, air filter replacements, and spark plug replacements, ensures that the engine runs efficiently. A well-maintained engine will deliver better fuel economy. Check the TACOMA MPG across all years to spot trends and learn what to look for in upcoming models.