06 3500 wanting better mpg while towing

[wes06dmax]

I got a friend who tows alot of trailers with his stock 06 3500 not sure if its a lly or lbz and he gets around 10 mpg, What can he do to boost his mpg I thought of steve shelley at power up diesel would be his best bet or does anybody else have any ideas

[Big Block 88]

If he's only gettin 10 MPG he may have other issues, we pull our 48 foot six horse 21K pounds loaded and still get 13-15 depending on conditions.

I would say a nice tow tune with EFI, and a turbo back exhast would be the best bet. An intake would be a waste IMO seeing as it is an LBZ pretty much just detuned if it is an LLY, so the intake flows plenty well.

[dmaxfireman]

if that is a big tag trailer i would say that is normal. is its a goose or 5ver then he should get a couple more out of it. all about the aerodynamics :)

more timing, less boost at cruise but more during acceleration, more fuel pressure and less pulsewidth at cruise

[lotsofmiles]

x2
what they said!