Posted by Jerry in Idaho [162.158.69.92] on Monday, October 10, 2016 at 13:29:32 :
In Reply to: Why non-detergent for break-in period? posted by Greg Coffin [172.68.34.169] on Friday, October 07, 2016 at 18:50:02 :
I would like to know the answer to that, from another mechanic.
An old mechanic friend of mine to told me the reason was to leave some of the material suspended to help bearings and rings to "seat in". I took his word on it and the engines he rebuilt for me always lasted a long time.