Engine Performance problem
1988 BMW M5 6 cyl Two Wheel Drive Manual 115, 00 miles
I am trying to figure out what kind of results (psi) I should get if I do a compression test on my car. A lead BMW technician I talked to said 130-140 is good. Yet many other people I have talked to said they consistently get between 190-210 across all cylinders. Why the discrepancy? Should I be more concerned with higher numbers or just general consistency? (For what it's worth, BMW states this engine to be 9.8: 1 compression). Thanks for your help.
Thursday, March 25th, 2010 AT 12:29 PM