Originally Posted By: Doug Hillary
Hi,
ARB1977 - This engine will generate deposits (namely varnish) due to high oil temperatures in some applications (vehicles). This can lead to oil pump drive issues and the like
A quality HDEO 5W-40 synthetic is a good choice in this case
I ran Syntec 5W40 once during the winter. I decided to change out the PCV and noticed a white goo like unevaporated condincation in the PCV and in the line...now i dont know if the PCV was going bad since it was original or what. She did have a 15 min commute on the freeway, i would think that would be enough time to burn off any condincation...its not leaking any water so i dont know. I may go back to the Syntec 5W40 and see if it comes back.