[FC] Oil additive??

[Ken Hand]

????? OK, For all here, there was a very good oil article by Bob Helt. I have also kept up on the oil issue for our Corvairs and it boils down to this, you can run any oil that does not have the "energy conserving" seal on the label. That equates out to any 10W-40 and heavier oil. 5W-30 is "energy conserving" and therefore does not have the "Zinc" added to that oil. The other oils, 10W-40 and heavier, have reduced zinc from what it used to be but still enough for our FC's and cars with flat tappet engines. 

??? The next time you are in a store go look at the oil bottles. On any 5W-30 and thinner oil you will see the "energy conserving" seal. Compare that to a 10W-40 oil bottle and you will see what I mean.


 


Ken Hand
248-613-8586
www.corvairmechanic.com 

 


 

-----Original Message-----
From: Ben and Lynn Stiles <lbstiles at verizon.net>
To: corvanatics at corvair.org
Sent: Sun, 28 Sep 2008 12:55 pm
Subject: [FC] Oil additive??










FC friends-

I got this from a classic car acquaintance. Does this have merit? Should I 
be worried about what I am running in my FCs? (Havoline 20W 50)

Thanks for any insight. Could the end of enjoying our classic cars really be 
coming?

Ben

> The ZDDPLUS (Zinc/Phosphate) additive is now in stock.  The EPA is
> requiring oil manufacturers to eliminate this additive in lubricating
> oils as it shortens the life of a catalytic converter.  Oils with the
> API rating SM do not have adequate amounts of Zinc and Phosphorus needed
> to prevent the cams & tappets from failure in engines manufactured prior
> to the 1990s.
>
>
>
>
>
> 


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