looking at your spreadsheet, seems we should also be recording model years also. My 2012 was .019,.024,.025,.024
Wow. Those are all much lower than the average, and the 2nd person who has reported a .019 gap. How's it run now?
Would love to hear if you noticed any difference in your car, I bet it revs up quicker & has a much smoother idle & throttle response. GM should be checking all cars with as many of these that are out of spec.Well i checked mine today and there gap was all .019 so i regapped them all to .035 and i have a 2011eco mt