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Power Strokes
6.7 Aftermarket
best tune for mileage
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[QUOTE="JRLott, post: 1245716, member: 19991"] I got 17.6 (with dash showing 18 or 18.1) from Midland to Waco running 80-100 and driving like an idiot on the race tune. Probably would have been better running a bit slower and a lot smoother. Dash is showing 14-14.5 around town. If it is exactly right, no problem, but if it is the standard .5-1 off, it's getting worse in town than factory. Factory and SCT would show about 15 and get 14-14.5. Hot street seemed about the same on the road and in town, but I haven't run it much. Street runs very well and does fine on fuel in town, but I can't remember what it was getting. I want to say it was in the 15.2-15.5 range. Tunes were very new, I was playing too much, and I haven't run it on the highway I haven't tried tow around town or on the road, except pulling a 12-14k fifth wheel from College Station to Midland. It got 9.3-9.5 on that trip running 70-75. All are hand calculated unless otherwise stated. Dash has nearly always shown about 1mpg better than actual. Sometimes as far off as 1.3 and as close as .3. [/QUOTE]
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