Gmc 2024 Denali Suv Mpg. The 2025 gmc sierra ev denali pickup is high in function, high in power, and high in price. In fact, it has a combined average of 15 l/100 km (15.7 us mpg), which isn’t that great, and despite getting our hopes up for a bit, we saw that coming.
Answers to frequently asked questions about octane. If you’re thinking of shopping around for the best luxury suv, a comparison between gmc yukon denali vs cadillac escalade reveals a winner.