Motor oil and Zinc....again
I thought I posted this yesterday, but I went looking for any responses, and I can't find the question....I must be losing it!
I have searched hi and lo for Rotella T CI-4, with no success. I recently picked up some store brand 10W30 from Tractor Supply, that has the CI-4 rating. Would it have the same zinc as Rotella T CI-4?
Thanks,
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