Quote:
Originally Posted by harborman
I was working on my Jeep CJ5. I did a compression test and one Cyl was only reading 95 PSI, so I put a few Oz. of the Marvel in the plug hole and let it sit a few days. I did another test and it went up to 150. I drove the Jeep and it seems to be running better and I will do another compression test later. Have any of you guys ever used Marvel Mystery Oil? Your experiences with it?
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Hey Harborman I have a dumb question regarding you putting in Mystery Oil into your plug tube. Did you have to suck it out before staring the engine or is it okay just to let it sit there while you re-did your compression test?
Thanks in advance,
Michael