[FC] Oil additive??

[Dale Dewald]

At 23:50 9/28/2008 -0400, Ken Hand wrote:

>????? 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.

What about Amsoil type ACD 10W30/SAE30 Diesel oil?  Unless they recently 
changed it, I cannot find the "energy conserving" starburst on the label. I 
suppose it does not qualify since it is technically a straight-weight SAE 
30 oil but, being fully synthetic, has it low temperature properties that 
meet 10W-30 specifications.

>??? 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.

I suppose if one were to desire a wider viscosity range they could use 
Amsoil type DEO
5W-40 [diesel oil], but I do not know how much ZDDP is in the formula for 
this oil.

Dale Dewald  - preferring thinner oils UP North
Hancock, MI