I need better fuel miliage, or the truck will have to go...i am currently at 16.5mpg with a basically stock 2005. I do have a straight pipe and a brute force cold air intake, but thats it. Is the the miliage max really helping?

Thanks

 

bump...bump...bump

 

What kind of mileage are you expecting?

 

On the Edge MileageMax I got a solid 2mpg increase.

https://www.dieseltruckresource.com/...d.php?t=202980

I ask the same question though - what are you expecting? These are trucks that weight around 4 tons. High teens are good in my book. Anything over 20 and you are blessed!!! Want mileage go TDI (that's my daily driver). I average 43 mpg since new over 61k miles (kept a log so that is an accurate real life number). Truck is for pulling and weekends. Unfortunatley this is what many have to do since our economy is in the crapper.

 

Here are my results, YMWV, all results hand calculated, my overhead is off ~1.2 mpg, this is no-load suburbian driving, 30% highway use, shifting at 1400-1600 rpm and 65 mph on the freeway.

Stock - 16.8
Rokkteck + Amsoil air filter - 18.4
M3 (325 MPG firmware) - 19.8
M3 (325 MPG CITY firmware) - 20.5

Winter fuel drops mileage around 1.5 mpg.