I just got my new Predator Programmer and was wondering if its ok to tune with regular unleaded? I just filled up and read in the manual that it requires mid/premium grade fuel. I'm not going to run anything but mid/premium after this tank, its just I cant wait to see how this programmer works. My performance upgrades are AFE intake and Magnaflow cat back system. I hope this thing will make me even happier with my H2.
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