Quote:
Originally Posted by n55david
You can mix e85 with your garbage 89 (fake 91).. you just have to use more e85 to compensate.. you'll wanna run about e45 to run the e40 mhd map.
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But the OP wanted to use the flex fuel kit. That obviously measures E in the tank but not if the rest is 93 or crappy 91 > will the timing be OK as the Arizona 91 might lead to pull