| Greg,
        >       I have been told not to use synthetic oils in freshly rebuilt 
        >       engines... At least not right away. The bedding in process for 
        >       the rings can be affected. The Mechanic I talked to recommended
        >       straight 30 wt oil to start with for my TR4 and then to switch 
over 
        >       to synthetics at the first oil change.
I stand corrected.  This is indeed exactly what I have done with my
engines; use dino oil for the first 20 minutes then the next 500 miles, then
switch to synthetic (note that I dont swich to synthetic until the
second oil change).  I perhaps should have been more detailed in my
analysis.  My main reason is to save $$$, but perhaps there is a 
mechanical reason too.  Thanks for picking this up.
        Shane
 |