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Zinc Additives - Motor Oil

Just keep in mind the issue of having too much zinc, especially when you start adding ZDDP to an oil that already has a lot of zinc in it.
 
"cmayna" said:
Just keep in mind the issue of having too much zinc, especially when you start adding ZDDP to an oil that already has a lot of zinc in it.

My guess is that would only be an issue if the shop he finds along the road has Brad Penn or some of the other High Zinc oil in stock and use it without telling him...
 
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