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Old 11-18-2014, 08:54 AM   #7
bluesubie
Scooby Guru
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Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

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Wow! Where are the additives?

So the only elemental additives are a much lighter dose of boron and small shot of phosphorus. Oh, and of course there's some sulphur but BS doesn't test for that. Did the HPGO smell any more sulphury?

Maybe there are organic non-metallic additives that don't show up in a uoa. Interesting that the HPGO is a bit thicker at operating temp (similar to Motul Gear 300). I think the lower viscosity of Extra-S (when hot) is one thing that helped shifting.

Thanks for this! Post this at bitog and you may even get comments from a tribologist.

-Dennis
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Last edited by bluesubie; 11-18-2014 at 09:08 AM.
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