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Regarding SA levels, that is super high for direct injection engine. However, S65 is not direct injection, so no worries there. Mobil1 across the range of their Euro oils that are High-SAPS have very high sulfated ash, much higher than competition. Their additive package is super strong, where it is actually a problem for direct injection cars (CBU).
Zinc level will not be an issue as long as your vehicle is not burning oil. Higher levels of ZDDP is there for track use. Both 15W50 and 10W60 are per Mobil1 track oil. 15W50 is in US recommended by GM to use on track in Corvettes.
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