Opinions on best ZDDP additive

Posted By 58rancho 12 Years Ago

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58rancho	Posted 12 Years Ago
Supercharged Group: Forum Members Last Active: 7 Years Ago Posts: 67, Visits: 180	Hello, It is almost time to do the yearly oil change on my 292. It is used lightly, less than 1000 miles/yr, and I have always used Havoline 10-40. I would like to use a zinc additive, as I am fairly sure the valve seats have not been prepared for unleaded fuel. I would be interested to hear the thoughts of the group! Thanks, James Q, Ruston,LA
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Opinions on best ZDDP additive By 58rancho ( 12 Years Ago )

James,

You are likely confusing zinc with lead. If the... By DANIEL TINDER ( 12 Years Ago )

James; Amsoil makes a ZDDP additive, but their 10-40 Premium oil is... By Rono ( 12 Years Ago )

You might also try Brad Penn products By bird55 ( 12 Years Ago )

I use Brad Penn products High Performance 10-30... By marvh ( 12 Years Ago )

As Daniel brings up, the zinc content in the oil is specific to... By Ted ( 12 Years Ago )

Here’s a link to a thread where some private testing that was... By Ted ( 12 Years Ago )

Here is a rebuttal to the www.speedtalk.com posting by the developer... By jrw429 ( 12 Years Ago )

I have been using Joe Gibbs racing oil in my Y since I built it and... By Hutz 292 ( 12 Years Ago )

Jim . Thanks for posting that link. It’s a good rebuttal... By Ted ( 12 Years Ago )