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Old Fri, June 10th, 2011, 10:31 AM
PhqChevys PhqChevys is offline
Double Whopper
 
Join Date: Jul 2009
Location: Round Rock, TX
Posts: 29
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Update:

Now that the computer has had a chance to "learn" with the 87 performance tune, my MPG have settled to about 14 or so. Yesterday I loaded the towing tune and the computer is still in the "learning" stage, but so far everything seems good. It has not done any sputtering in either tune so far. I still have about 1/2 tank (I have the big tank, I think it's 35 gal) of 87 left, once I burn it up, I'll fill up with some 93 and give that tune a go...