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it's my understanding that diesel oils have the right amount of zinc in them. since i don't know that to be 100% true with a synthetic blend oil i would just get 2 bottles of Lucas breakin additive and one to the break in oil and the other after you change it. most auto parts stores have Lucas.

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As far as the diesel oil, they or may not have enough zinc...If you have moderate to high spring pressure, probably not. Id still add a bottle of Comp, EOS, etc.

I know nothing about the Lucas break in oil. Id like to see a lab report on it. If its like the rest of the Lucas stuff...run...

EDIT. Found some info on the Lucas break in oil, looks to be good stuff.

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No zinc in any of the deisel oils since they put the cats on them since the zinc plugs them up.

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