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Re: What's the best oil for a old tired engine?
Rotella USED to have zink in it and that was good for keeping things nice and happy. BUT they took most of the zink out of it a couple years ago... Its no more helpfull then some 20w50 now
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2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks..
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