While 29 MPG combined won’t break any fuel economy records, for the 2017 Volkswagen Jetta 1.8T, it’s a good mix of performance and acceptable running costs that appeals to some buyers. This version isn’t for hypermilers, but rather for drivers who want more power than the base model, without using too much gas. Young professionals, small families, or anyone who likes a responsive engine and a comfortable ride will enjoy this compact sedan.

City and highway performance

The 2017 Jetta 1.8T’s EPA rating of 25 MPG in the city reflects the demands on small turbocharged engines in stop-and-go traffic. Direct injection helps reduce fuel consumption, but the engine still works harder to get the car moving from a standstill. On the open road, the Jetta 1.8T does well. Its highway rating of 35 MPG is more impressive, showing the engine’s relaxed cruising and the smooth six-speed automatic transmission. This difference between city and highway numbers highlights the Jetta 1.8T’s suitability for commuters who spend a lot of time on the freeway.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Volkswagen Jetta 1.8T at $1,500. This is based on driving 15,000 miles per year and using national average fuel prices. Individual experiences will vary depending on driving habits and local fuel costs, but this provides a standard for comparing the Jetta 1.8T’s running expenses with those of its competitors. Drivers who mostly travel shorter distances with little highway speed will likely have a higher annual fuel cost.

Real-world expectations

The EPA’s figures are based on controlled testing conditions. Your actual mileage will depend on several factors, including driving style, traffic, vehicle maintenance, and even the weather. Aggressive acceleration and frequent hard braking will reduce fuel economy, as will prolonged idling. Maintaining proper tire inflation, keeping up with scheduled servicing, and avoiding carrying unnecessary weight in the vehicle will all help achieve closer to the EPA estimates in real-world driving.

How it compares

The 2017 Honda Civic, a long-time rival to the Jetta, gets up to 42 MPG on the highway with its 1.5T engine in some trims, which makes it more fuel-efficient on paper. However, the base Civic with its 2.0L engine gets around 31 MPG combined, closer to the Jetta’s numbers. For buyers who want the best possible fuel economy, the Civic is appealing. The 2017 Toyota Corolla LE Eco, with its focus on efficiency, reached an EPA-estimated 34 MPG combined, slightly ahead of the Jetta 1.8T.

The Mazda3, often praised for its sporty handling, offers similar combined MPG ratings to the Jetta 1.8T, but its real-world economy may be slightly worse if you tend to drive it hard.
For drivers considering other Volkswagen products including older models, it’s worth reviewing JETTA MPG across all years to check if they match your requirements, as well as all Volkswagen fuel economy data.

Tips to maximize efficiency

The 2017 Jetta 1.8T responds well to a gentle driving style. Avoid aggressive acceleration and try to maintain a steady speed, especially on the highway. Anticipate traffic and try to avoid sudden braking, letting the car coast whenever possible.

The six-speed automatic transmission selects the optimal gear well, and you can further improve fuel economy by using the “Eco” mode, if the car has it. This mode adjusts the throttle response and shift points to favor fuel efficiency over performance. This setting is useful in city driving or during stop-and-go traffic.

Tire pressure is important for fuel economy. Check your tires regularly and make sure they are inflated to the recommended pressure listed on the door jamb sticker. Under-inflated tires increase rolling resistance, making the engine work harder and use more fuel.

Avoid using accessories like air conditioning unless you need to, as they put an extra load on the engine. During cooler weather, use ventilation and fresh air instead. Remove any unnecessary weight from the car, as extra cargo increases fuel consumption. Removing anything you don’t need can make a difference.