MPG tips or tricks?


New member
1988 Mitsubishi Fuso FH Turbo, 6.6L diesel, anyone have some proven mechanical tips or tricks to improve fuel economy? Thanks, Cliff

Truck Shop

Well-known member
What trans and final drive ratio? Does it have overdrive? On a rig like that it's all about gearing. And it's hard to make a brick aerodynamic. IMO

Truck Shop


Well-known member
I would think that money would be better spent on aerodynamics than on the engine. The best fuel saver for the engine is your right foot. If its a box truck a nosecone may help.


Well-known member
There is no dpf, but have you gutted the kitty?
I don't know of a bigger pipe is available, you could always have one welded up.
Still, it's a small engine in a large brick.
Don't be Sammy Hagar 😏