Jim,
This confirms what I researched on my own that the 20W-50 wt oil does not
neccesarly have lower amounts of ZDDP. If one thinks about it the vehicle
manufacturers do not recommend 20w-50 wt oil for their current or recent models.
Glenn,
Thanks for letting the list know about Valvoline's response.
Regards,
Greg Perry
-----Original Message-----
>From: Jim Jones <jimjcmo@yahoo.com>
>That OUGHT to settle the issue, though there may be those who see conspiracies
>everywhere.
> Jim
>----- Original Message -----
>Yes, the Valvoline VR1 Racing Oil is SM rated, and still carries a 1300ppm
>amount of Zinc and 1200ppm amount of Phosphorus. The API SM has nothing to
>do with the ZDDP additives in oil, this proves that. The API SM just means
>that the oil is rated for gasoline engines.
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