2025 Gmc 3500hd Duramax Mpg

2025 Gmc 3500hd Duramax Mpg. For 2025, this burly powerplant sees an increase to 470 hp. Explore the differences between the 2025 gmc sierra 2500 hd vs 2025 gmc sierra 3500 hd, and see for yourself.

2025 gmc sierra 2500 and 3500 hd first look: The new 2025 gmc sierra hd pickup truck pulls your world with turbocharged power and an impressive lineup of trims that includes the first ever denali ultimate.