[Desoto GTO]

I know the rings are seated farely quick, but is when is a good time to switch to synthetics, i have 1200, of size 14 breakin miles, i push it often, never been past 100mph yet. arty:

 

[Joey Waid]

NOW change it .I cant belive you have never been over 100. I have a little under 1200 miles and I have been over 130, 5 times and 140, twice.

 

[6spdgoat]

switched to mobil 1 @ 1,200 miles!