2021 Nissan Rogue buyers will soon have another engine option. Nissan is reportedly adding a new turbocharged three-cylinder engine to its compact SUV. The three-cylinder will be notably more efficient than Rogue’s four-cylinder engine option.

News of a new engine first leaked on the EPA’s website, according to Car And Driver. Given the news isn’t official, we don’t have all of the details just yet. We do have the fuel efficiency data though and it’s quite impressive. In its most efficient form, the turbo 1.5-liter will be rated at 30 mpg city and 37 mpg highway, or 33 mpg combined. Opting or higher trim levels will ding those numbers a bit, while adding all-wheel drive dings them further. Even adding goodies, the combined rating never goes below 32 mpg.

The combined rating is a solid 3 mpg higher than the naturally aspirated 2.5-liter four-cylinder that is in Rogue today. Like the 2.5-liter, this engine will be mated to a CVT automatic.

Assuming this new three-cylinder materializes, it would be among the most-efficient compact crossovers on the market. The only options with higher fuel economy ratings are the Toyota RAV4 Prime Hybrid and Ford Escape Hybrid.

Car And Driver reached out to Nissan for comment on this new engine. They would only say it is part of pilot program the company is conducting, whatever that means. They have declined to offer any further specifications on the new engines, but perhaps some will be forthcoming soon.