Quote:
Originally Posted by regal
There is talk in the thread about camshaft wear due to Subaru having issues with VVT design, a video was just posted I guess this is their third revision. Now one thing we know is ZDDP protects camshafts, the SN oils are pretty darn low on ZDDP. I'm going to stick with my regiment of adding a 1/2 qt of 0w30 Mobile racing oil, its full of the stuff and compatible with Toyota 0W20. Only down side is cat damage when/if the rings wear out.
I can understand why so many here take redline 0w20 as its full of ZDDP, ashame it voids the warranty.
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Where's the vid? Is the wear specifically traced to lower ZDDP levels? I don't know, ZDDP isn't the be all and end all for anti-wear additives. It's just cheap.
There are new additives including organic non-metallic adds that don't show up in uoa's. Do you really think that someone that uses super low zinc Eneos Sustina is going to have additional camshaft wear based on lower ZDDP levels? I think the oil formulators are smarter than that. OTOH, Mobil1 5W-20
does use more ZDDP than the 0W-20.
http://www.mobiloil.com/USA-English/...duct_Guide.pdf
And where are you finding find M1 Racing?
I only see it on-line.
-Dennis