The 2017 Chevrolet Cruze Diesel sedan achieved an extremely frugal highway fuel consumption rating of 4.5 L/100 km (52.2 mpg) during its most recent round of independent testing, the automaker’s announced.

The U.S. Environmental Protection Agency has certified the consumption rating—making the Cruze the most fuel-efficient non-hybrid vehicle sold in North America.

Chevy’s fuel-sipping sedan is powered by a 1.6-liter inline four-cylinder turbo-diesel which puts out 137 horsepower and 240 lb-ft of torque at full song. The highly efficient engine meets the most stringent emissions standards, including the U.S.’ Tier 3 Bin 125 standard.

“The Cruze Diesel Sedan combines best-in-class fuel efficiency and fun-to-drive performance into a vehicle that offers compact car drivers yet another innovative alternative fuel option from Chevrolet,” said Shane Peever, a Chevrolet Canada spokesperson.

“With its unparalleled fuel consumption rating, the Cruze Diesel delivers durability and torque in a package that suits our customers’ diverse lifestyles and driving habits.”

Starting late 2017 the Cruze hatchback will also be available with diesel power, sold as a 2018 model. Canadian pricing for the Cruze diesel sedan starts at $24,195, plus a $1,600 destination charge.