Cylinder 4 isn't happy, 10% percentage leakage and the plug is angry. I just realized that the last test I did was exactly a year...
On the 3/14/19
1 - 130 PSI - 4%
2 - 120 PSI - 3%
3 - 120 PSI - 4%
4 - 120 PSI - 10%
5 - 121 PSI - 4%
6 - 121 PSI - 4%
