Quote:
Originally Posted by az_eric
Yeah my driving style i know hurts. I drive a company van all day at work and sometimes i just want to get on it and hear the exhaust lol. And honesty i only drive it like 5k miles a year. I need new tires coming up and am going to switch away from the all terrains to some highway treads.
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Driving style is the easy one, man! coast, coast, coast.
DFCO is tough in these trucks, mine has to be above 60mph when starting a coast down or it wont even bother. My scan gauge has taught me that when cruising a back road at 55mph, it is actually beneficial to accelerate gently to ~62 first before a coming turn or stop sign, to coast down on DFCO as much as possible.
Tires are huge too. When I got my 20" wheels, I really wanted some K02 all terrains for style and off-road capability. But you know what? Michelin LTX M/S tires are just as capable with fresh tread, and then you get completely QUIET driving and definitively better mpg. My 265/60/20 LTXs were only $215/tire, too. Highly recommend.
I'm surprised your electric fans didn't help more. That job is still on my list, contemplating doing it at the same time as a cam-swap. An LT1 or LS2 cam would really wake up the 6.0L LQ4, and presumably not hurt mpg - need to further verify that part though.