Hello all,
In looking at my past oil analysis results, I was curious about Zinc and Phosphorus levels. See link for UOA below.
https://www.bobistheoilguy.com/forums/ub...owe#Post4355305
My UOA with Valvoline 5w-40 (CJ-4) showed Zinc at 1,340 and Phosphorus at 1,065
My UOA with Delvac 5w-40 (CJ-4) showed Zinc at 977 and Phosphorus at 878.
Both are CJ-4 so why did Delvac show lower numbers? Is Zinc and Phosphorus sacrificial? My Delvac 5w-40 is from 2016 so I doubt they bottled CK-4 in it. Wear numbers are good with Delvac especially since I towed vs not towed on Valvoline. What do you all think?
In looking at my past oil analysis results, I was curious about Zinc and Phosphorus levels. See link for UOA below.
https://www.bobistheoilguy.com/forums/ub...owe#Post4355305
My UOA with Valvoline 5w-40 (CJ-4) showed Zinc at 1,340 and Phosphorus at 1,065
My UOA with Delvac 5w-40 (CJ-4) showed Zinc at 977 and Phosphorus at 878.
Both are CJ-4 so why did Delvac show lower numbers? Is Zinc and Phosphorus sacrificial? My Delvac 5w-40 is from 2016 so I doubt they bottled CK-4 in it. Wear numbers are good with Delvac especially since I towed vs not towed on Valvoline. What do you all think?
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