Quote:
Originally Posted by 911medic
Winter blend fuel makes a difference, too (and not for the better).
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+1 Don't compare tune performance with different blends of seasonal fuels. To get the best results you need a apple vs apples comparison. My MPG went down mind Sept. when winter blend in my area got put into effect.
The V6 comes from factory running rich. When using boost tuners seem to get better numbers when going leaner, close to 13.0. At first many thought that 11.8 - 12.0 was best, not the case all the times.
IPF vs Trifecta to each their own...Not all cars run the same with the same mods all the times.