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> >I don't think it's abnormal for a compression test to show differing >pressure for each cylinder and, in fact, there's an allowable percentage >(can someone give a number here, like 5-8%) of variance. > >What prompted the compression test? How is the car running? We need to >have more detail to give you a better idea of what could be wrong (Jason R. >has had some experience here... :) Ok here's the details... The oil runs low and burns real fast after 350 miles or a bit less than that. The speed is fine. It still have a bit shaky when it idle. Your saying the "allowable percentage" of 5-8 percent of variance. Each drop about 10-30 percent. I do not know if it is okay and tolerance for the engine itself. I requested the compression test. For Jason R, please contact me and would like to share to see if we have the similar problem. Thank you. -Jody '71 SQBK F.I. System