Re: ZINC IN OIL & ZINC ADDITIVES
Just a note on ZDDP... It can/will wipe out a catalytic converter. This is why it's gone in todays oils [and the use of roller lifters in most modern vehicles] Rotella was listed for use in diesels [no catalytic] . I guess people were using in in gas powered stuff and wiping the cats out so they lowered the use of zinc in it...
One of the Valvoline VR Oils are for 'off road use' only...Figuring it would be used in cars without cats...higher concentration of zinc in that. I get mine from advance auto parts...'for off road use'
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