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TDG Rocks!
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393 Posts
Discussion Starter #1
ok so i have really been driving smarter and lately it seems that when im in econo mode on da freeway i can only go 60 and keep the 600* egt while i can switch it to stock and pull about 70 and keep it at 600*. Is it cuz the tune is made for in town drivin thats the only soultion i see. oh i got 4:10's with 285/75 r 16 a/t's @ 75psi. I avg 18. but thats on stock. 15 on econo.
 

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Just learnin and waitin..
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217 Posts
Ouch. I know this is an old post.. but still.. I have the same gears and tires, and i get 17 on stock and 22 on econo. and the 22 is overall. not just highway. and my trucks leveled. plus some. So idk. Thats kinda weird. I just put a new fuel pump on, the pump was leaking right out of the side of it. and i was averaging 16 with it leaking. But the truck had a reallly strong smell of diesel about it. so i dont think something like that would go unnoticed, But worth checking i'd think
 
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