I'm using Penzoil Platinum and a PureOne filter. I've read several UOA's from Bobistheoilguy forum and this oil was highly regarded and tested well. To be honest I don't think it really matters as long as you change your oil regulary and use a good quality oil.
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Originally Posted by bebenegro
I saw they have this as well as the Penzoil Ultra Premium for $6 a quart... Which one is better, or more recommended for our engines?
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