onebadz

hey guys, accidently ran a tank of 87 through the z, drove easy most of the time, well ran that tank out, put the 93. Ran it up till about the 3/4 tank line and am still pulling some knock(around 2 degrees). What do yall think it is?

87Fake

Wait till you run a few tanks through it, then check again, could still have some of the old gas mixed with the new stuff.