<VV> Synthetic oil / Regular oil

[Bryan Blackwell]

Hi Pete,

If they will tell you the ZDDP PPM value for their oil, based on what  
I've read you're looking for about 1200 or so - definitely not under  
1000 for break in.  Royal Purple is said to be very good oil, so I'd  
imagine this is the case since they are recommending it for flat  
tappet break in.

For weight, 10W-30 is what Chevy recommended and I'd say is still the  
ideal weight for most Corvair engines.  The ZDDP issue trumps this,  
however, so if they don't have a 10W-30 with enough ZDDP I'd use  
another weight that does.

--Bryan

On Nov 13, 2008, at 9:33 AM, PETER INMAN wrote:

> I was reading on Fast Vairs about Syn oil verses regular oil and  
> dont know how to post there so I`ll try here. To buy Amsoil here in  
> my area you have to buy it by the case so I chose to take the  
> advice of the Ansoil dealer which was to purchase Royal Purple  
> locally. He told me there was no difference in the quality between  
> the two oils. Is this correct and what weight should you use in a  
> Corvair 110 engine? Also I`ve researched Royal Purple and they have  
> a break-in oil for new engins with flat tappit valve trains. Would  
> this be a good oil for the first 1000 miles or so for a completely  
> rebuilt 110 engine? Would sure appricate any advice in this area.  
> Thanks.