2025 6.6 Duramax Mpg

2025 6.6 Duramax Mpg. 2025 chevrolet silverado hd 6.6 duramax diesel updated: Going next week to order my truck, and i'm seriously torn on which to get.

The 2025 silverado 2500 duramax diesel achieved a result of 18 mpg in our testing. Gm’s and isuzu’s 6.6 duramax turbo diesel v8 was far ahead of its time when it came out, but alas, mpg wasn’t a top priority.