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Join Date: Oct 2006
Location: Tipton, Iowa
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You might also consider running an SCT tuner with a hot race file (custom file) on your long trips provided you're not towing anything. If you can keep your foot out of it, Ie: no hot rodding, you should see a couple mpgs gain from that alone. In my experience just adding a tuner and running a low power file doesn't do anything to improve fuel mileage, but running big race files and taking it easy will do wonders. Also FWIW, I've seen about a 1 mpg increase just using diesel kleen fuel additive from powerservice.
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'06 True Blue/Silver 250 crew cab
ARP's, EGR blocked
AFE stg.2, MBRP 4" pipe
Air Dog 150, ITP reg. return
Bulletproof oil bypass system
Ride rite air springs in the rear
EGT, boost, and fuel pressure gauges by DiProcol on the pillar
Plus a few other odds and ends...