Hello David
"the current oils may get you by for a "while"" That is the issue. What
time frame would a "while" be equivalent to?
Kind regards
Ed
AHCUSA Historian
Saskatoon
'53 BN1 '65 BJ8
Dave & M wrote:
> Valvoline VR1 used to be one of the good guys.
>
> The latest batch of VR1, Valvoline Racing 20W-50, part # VV211, that
> I have, is clearly marked for API services SM, SL, CD. The newer API
> rated SL oils, by definition, must contain less or no ZDDP. You will
> note that none of the most current oil analysis' for VR1 mention the
> ZDDP content any more. It used to be clearly listed in the MSDS.
>
> The current Valvoline Racing 20W-50, part # VV851, is clearly marked
> "not Street Legal", is not marked "VR1", & is clearly stated on the
> back that it contains "zinc & friction modifiers balanced with reduced
> detergents" - "use of this oil may damage catalytic converters". It
> has no API rating for obvious reasons.
>
>
> To further confuse the issues, GM EOS # 1052367 (engine oil
> supplement) used to recommend adding one pint per oil change. Their
> new labeling calls it "Assembly Lubricant", not oil supplement,
> recommends it as assembly lube only, & does not recommend it as an
> additive to engine oil.
>
> In my personal opinion, Valvoline & GM have done an excellent job of
> disguising - confusing the issue. I guess, as always, you will make
> the final decisions. Chances are, if you are not breaking in a new cam
> & lifters, the current oils may get you by for a while.
>
> Regards,
> Dave Russell
|