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Re: oil additive question
[Re: CompSyn]
#143904
11/08/08 02:29 PM
11/08/08 02:29 PM
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Joined: Feb 2003
Posts: 8,020 Pangaea
B5 Bee
master
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master
Joined: Feb 2003
Posts: 8,020
Pangaea
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Quote:
Quote:
Quote:
In the last year I have found about 60 qts of left over older formula SJ and SL at various stores.
So tonite I was in a Walmart checking the back of the shelves. I noticed they carry Royal Purple, it has a SL rating. The Mobil 1 'High Mileage' oil also has a SL rating, not SM like other Mobil 1 formulas. Anyone know the Zn-Ph ppm of these two?
I prefer not to run diesel oil because of too much detergent and the racing oil has too little, requiring more frequent oil changes. Something I can get locally off the shelf would be great if High Mileage Mobil 1 has enough ZDDP.
The straight 30wt Castrol also has a SL rating, other 30wt oils I have seen in the past is still SL oil.
Mobil 1 10-40 High Mileage, SL/CF rated:
PHOSPHOROUS: 860 ZINC: 1035
I’ll keep looking for a up to date UOA/VOA for Royal Purple
CompSyn
Here is VOA info I found on Royal Purple API (SL) Rated 5W-20 motor oil.
Zinc: 666ppm Phosphorous: 563
CompSyn
BTW, check out the New AMSOIL Group Discount for moparts.com members.
Thanks CompSyn . The Mobil 1 HM doesn't look too bad, better than the other SM oils. Guess it would do in a jam but I'll find a local Amsoil dealer when my older SJ and SL oil supply is gone. Royal Purple , appears they need to upgrade their labels to SM.
I keep seeing GM EOS has been re-released, only with another part #. Whats the new # and is it still ZDDP or has it been changed to Moly?
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