I was wondering what setting to put my SMARTY POD on to get the best fuel mileage? I have a 2005 5.9 commonrail, and its auto. Keep in mind that I have a stock tranny and i hope not to be replacing it anytime soon.

Thanks

 

for me 5 was best but 3 is ok but I have a 6 speed, and on 5 I fried the clutch but it has 96000 on it but be careful

 

Same thing for me. 5 is great. With default tq and tm. But watch it with that stock tranny.

 

Thanks guys. I have been careful pulling my trailer and tractor GENTLY! The last thing I need is to fry that tranny right now.