Forum Discussion
4x4ord
Dec 02, 2019Explorer III
Changing the tuning to lower power levels is just as apt to lower the fuel economy as it is improve it. I think gaining fuel economy during low load situations such as cruising down the highway empty would require a smaller displacement engine, lower boost, high fuel pressure and a higher compression ratio.
About Travel Trailer Group
44,066 PostsLatest Activity: Apr 16, 2026