<VV> Fully broken in and ready for synthetic oil

[Bryan Blackwell]

Comments inline:

On Mar 17, 2011, at 4:07 PM, Stephen Upham wrote:

> Correct me if I'm wrong, but I thought that synthetics were the  
> ultimate oil to use.

That's what I understand as well.

> I don't remember reading any discussions about  
> the levels of ZDDP in synthetic oils.

There have been a couple this month alone, you must have missed them.  See http://www.vv.corvair.org/pipermail/virtualvairs/2011-March/thread.html

> They always seemed to center  
> around dyno oils.

No, applies to all oils.  Thus the discussion on which Mobil 1 to use.

> Do I understand correctly that synthetics also need  
> to have high ZDDP levels to be effective in our Corvair engines?
> 
Yes.  As I understand it the additive is needed in all oils, it protects parts under extreme pressure which is a function of engine design, not oil type.  The amount of ZDDP is listed on some oil makers' websites.

> Stephen