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FE Power Forums => FE Technical Forum => Topic started by: stroked67 on February 27, 2017, 09:04:30 PM

Title: Zinc or no zinc
Post by: stroked67 on February 27, 2017, 09:04:30 PM

OK guys, with a solid roller cam, is oil with high ppm zinc the best way to go? If not what do you guys reccomend?

Title: Re: Zinc or no zinc
Post by: jayb on February 27, 2017, 09:08:41 PM

The high zinc content is probably not required for the lifters, but it will help the cam gear and distributor gear wear in nicely.  I'd run it, for a while anyway...

Title: Re: Zinc or no zinc
Post by: Drew Pojedinec on February 27, 2017, 10:46:22 PM

Not that it's a suggestion one way or the other to the original poster.....

The massive engines I work on, we don't change the oil at all.  Not for 50k + hours.  The only reason we'll ever change the oil is if zinc levels are higher than 10ppm.
An engine doesn't *need* zinc.  Only a cam, or any other metal that has a sliding high pressure action across the face of another piece of metal needs it (why most greases have a ton of zinc).

Title: Re: Zinc or no zinc
Post by: stroked67 on February 28, 2017, 10:52:28 PM

Thanks guys, I will pLan on running it this summer and see how things look when I tear it down to lifters next winter.