I have a 2002 Toyota Corolla (1zz-fe engine with 236k miles on it) and did a compression test on a warm engine. My readings are:
150 - 150 - 140 - 175
I've read that the difference should not be more than 15%. I am more in the 20% range. Any suggestions?
Note: I changed my piston rings a few months ago.
Thank you!