2025 Duramax Fuel Mileage Calculator. Current truck is a 2014 duramax with the 6 speed. A camper is in my future plans.
โ it is calculated by weighting the city value by 55% and the highway value by 45%. 6.4 towing 8,000# ball tow rv.
2025 Duramax Fuel Mileage Calculator Images References :