2024 6.6 Duramax Fuel Mileage. Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with mpg. With that in mind, the better, safer, and more environmentally friendly alternatives that iโ€™d.


2024 6.6 Duramax Fuel Mileage

This is my first diesel truck so my question may seem odd but hear me. For those wondering about fuel mileage, if i spend another $100 per month on fuel, which i.

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