[DeTomaso] ZDDP zinc oil additive

[Douglas Kelm]

Shell Rotella is a diesel rated oil and there are those who would argue that
running a diesel oil in a gas engine is not the optimal solution, especially
when there are other high ZDDP content oils that are specifically designed
for use in gas flat tappet engines,

Doug

----- Original Message ----- 
From: <pantdino at aol.com>
To: <rimov at charter.net>; <orville at rubyglass.com>; <detomaso at realbig.com>
Sent: Thursday, March 12, 2009 10:20 PM
Subject: Re: [DeTomaso] ZDDP zinc oil additive


>
>  There is a virgin oil analysis for Shell Rotella T Synthetic CJ4/SM on
bobistheoilguy.com from 8/08
>
>
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1234980#Post1234980
>
> It shows 1300ppm of Zinc, which is plenty.? So at least this oil is still
OK for our cars..
>
> You really have to specify which rating of oil you are talking about when
you state an oil type-- each time the government stipulates a change the
rating changes.? So the Rotella T Synthetic CJ4/SL I bought a month ago
(probably old stock in the supply chain) is probably even higher in zinc
than the SM-rated.?
>
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> JIm
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> -----Original Message-----
> From: P. Rimov <rimov at charter.net>
> To: Orville Burg, II <orville at rubyglass.com>; detomaso at realbig.com
> Sent: Thu, 12 Mar 2009 8:59 pm
> Subject: Re: [DeTomaso] ZDDP zinc oil additive
>
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> It appears fairly universal that ZDDP rich oil or additives are benificial
> for our antique engines which begs the question as to which weight is
> equally benificial. Most of the high ZPPD oils like Valvoline VR1, Brad
> Penn, Collector's choice and Mobil 1 are 20w50.
>
> Cheers
>
> Paul
>
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