We all know the Duramax engine's main advances - the sheer power, torque, longevity, and reliability. But, what about fuel economy? Their fuel efficiency is around 15 miles per gallon. From there comes one of their most frequent questions - how to get 30 MPG with a Duramax. There are a couple of ways to reduce money on fuel costs. You can tune the truck so it will have better fuel economy. The other way that can supplement the first is upgrading the exhaust system. Other factors are mainly co...
