New VW Jetta Gets Fuel Efficiency Boost

Volkswagen AG’s redesigned Jetta compact car has received a 34-mpg fuel efficiency rating (30 mpg in the city/40 mpg on the highway) from the U.S. Environmental Protection Agency.

The seventh-generation model, which is slightly larger than its predecessor, will be powered by a turbocharged 1.4-liter 4-cylinder engine that makes 150 hp and 184 lb-ft of torque. The fuel efficiency ratings apply to both the car’s 8-speed automatic transmission and 6-speed manual options.

The current Jetta, which also is powered by a turbocharged 4-banger, is rated at 32 mpg with a 6-speed automatic. The 5-speed manual version gets 33 mpg.

VW attributes the improved fuel economy in part to the car’s class-leading 0.27 coefficient of drag. This is achieved through the use of active grille shutters, optimized underbody airflow, a small rear spoiler and redesigned front bumper that create an air curtain to direct air around the wheels.

Other fuel-efficiency enhancements include switching to a thinner engine oil to reduce friction losses. A stop-start system is standard, and the new Jetta boasts a more efficient alternator and air-conditioning compressor.

The 2019 Jetta also is fitted with low-rolling-resistance tires. The tires reduce “road drag” by as much as 25%, according to the carmaker.