Top 10 Most Fuel-Efficient Compact SUVs in 2022 Published on February 20, 2022 in Top 10 by Dominic Boucher Photo: Chevrolet 8. Chevrolet Equinox The engine in the Equinox is the same that powers the Terrain, but the former is more fuel-efficient at 8.4 L/100 km. And that’s despite a transmission with six gears only.