21 MPG combined won’t win any hypermiling contests, but it’s a reasonable figure for the 2016 Toyota Sienna 2WD with the 3.5L V6. This isn’t a sports car; it’s a minivan. For parents who need to haul kids, carpools, hockey gear, and home improvement projects, fuel efficiency is less important than practicality, space, and reliability. The Sienna delivers on those, making that 21 MPG a price many are willing to pay for the utility it provides.

City and highway performance

The EPA estimates for the 2016 Sienna 2WD with the 3.5L V6 are 18 MPG in the city and 25 MPG on the highway. The city figure reflects the stop-and-go driving minivans endure, shuttling kids to school, running errands, and navigating crowded streets. The highway number is more palatable, signaling that longer road trips won’t completely break the bank. The six-speed automatic transmission is smooth and responsive, and it helps keep the engine in its sweet spot for both power and efficiency. The V6 provides ample power, even when fully loaded, so there’s less need to bury your foot in the throttle, which hurts fuel economy.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2016 Toyota Sienna 2WD 3.5L is $2,100. This figure is based on driving 15,000 miles per year and assumes a national average fuel price. Your actual fuel costs may vary depending on your driving habits, the type of driving you do (city vs. highway), and the price of gasoline in your area. $2,100 provides a useful benchmark for comparing the Sienna’s operating costs against other vehicles. While hybrid minivans are now available, the up-front cost of those vehicles can be substantially higher. For some buyers, the initial savings from buying a used 2016 Sienna outweigh the long-term potential for fuel savings offered by a hybrid alternative.

Real-world expectations

The EPA estimates offer a good baseline, but it’s important to set realistic expectations for real-world fuel economy. Many owners report numbers close to the EPA estimates, but several factors can influence your actual MPG. Aggressive driving, frequent short trips, excessive idling, and carrying heavy loads will all negatively impact fuel economy. Conversely, gentle acceleration, consistent highway speeds, and proper tire inflation can help you get closer to, or even exceed, the EPA numbers.

The 2016 Sienna’s age also plays a role, as older vehicles may experience a slight decrease in fuel efficiency due to normal wear and tear on the engine and drivetrain. Keep the vehicle properly maintained, and you’ll stand a better chance of achieving optimal fuel economy. You can see SIENNA MPG across all years.

How it compares

The minivan segment isn’t exactly known for its fuel sippers, but let’s see how the 2016 Sienna stacks up against some of its competitors. The 2016 Honda Odyssey, another perennial favorite, achieves an EPA-estimated 19 MPG city and 28 MPG highway, potentially edging out the Sienna on the highway. The Chrysler Pacifica, debuted as a 2017 model, came onto the scene with a similar powertrain offering numbers competitive with the Sienna as well, though again, model year differences can be expected. These differences, while potentially significant over the long run, often aren’t the deciding factor for minivan buyers. They’re more concerned with overall reliability, cargo capacity, and the availability of features like sliding doors. If you’re curious, you can explore all Toyota fuel economy data to see how other models compare.

Tips to maximize efficiency

Regular maintenance is key to good fuel economy. Make sure your 2016 Sienna’s engine is properly tuned and that the air filter is clean. A dirty air filter can restrict airflow to the engine, reducing performance and increasing fuel consumption. Check your tire pressures regularly, or better yet, enable the tire pressure monitor system and respond to low tire pressure indicators. Properly inflated tires reduce rolling resistance, improving fuel economy and extending tire life.

Avoid aggressive driving habits. Rapid acceleration and hard braking burn extra fuel. Instead, accelerate smoothly and gradually, and anticipate traffic conditions to avoid unnecessary stops. Using cruise control on the highway can help maintain a consistent speed and optimize fuel efficiency, especially on relatively flat stretches of road.

Minimize idling time. Letting your Sienna idle for extended periods wastes fuel. If you’re going to be stopped for more than a minute or two, turn off the engine. Restarting the engine consumes less fuel than idling for a prolonged period, especially with modern vehicles.

Consider lightening the load. The heavier the vehicle, the more fuel it consumes. Remove any unnecessary items from your Sienna, such as sports equipment or tools that you don’t regularly use. Even small weight reductions can make a difference over time.

Finally, make sure you are using the recommended fuel grade for your 2016 Toyota Sienna. Using a higher octane fuel than required won’t necessarily harm the engine, it also won’t improve performance or fuel economy. Using the proper fuel grade will ensure that the engine is running optimally and that you’re getting the best possible fuel mileage.