2024 Chevy 6.6 Duramax Mpg. Chevrolet has made big improvements to the 2024 silverado hd 6.6 duramax turbo diesel. The refreshed silverado hd offers improved styling, interior, and power, but still suffers from poor fuel economy and missing features.

Learn about the common issues and. The most accurate 2024 chevrolet silverado 3500 hds mpg estimates based on real world results of 192 thousand miles driven in 23 chevrolet silverado 3500 hds.