2024 Chevy Duramax Fuel Mileage
2024 Chevy Duramax Fuel Mileage. — but my new duramax's fuel economy is about 3 mpg less then my last 6.7 cummins. Use our handy tool to get estimated annual fuel costs based on your driving habits.
— i looking to purchase a new 3 liter. — it’s also likely to improve the big truck’s fuel mileage.