Mobil 1 15w50 Zinc content
#1
Mobil 1 15w50 Zinc content
This may not belong here but I stumbled across this oils specs after I wiped the cam in a 396 I used to have. Just checked and this was last updated March 2017 so it still applies. Phosphorous is 1200 ppm and ZINC is 1300 ppm. Cheap off the shelf insurance available at Walmart for those of us still running flat tappet cams!
#7
Don't get totally hung up on the amount of Zinc in the oil. Too much can inhibit ring seal.
I've been using the ZR-1 now for a couple of years. 0 issues. I think it has just the right amount for most applications.
I've been using the ZR-1 now for a couple of years. 0 issues. I think it has just the right amount for most applications.
#12
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