Join Date: Jul 2008
Location: One of the 13 Colonies
Zinc additive on initial break-in...yea or ney
I had planned on using the Zinc additive in my 350, but wasn't sure if I should wait until after the 500 mile break-in period on the motor. (I'm rebuilding it now). On one hand, you're supposed to use non-detergent oil for the break-in. On the other hand, seems like zinc might actually help reduce damage to the bearings and cam during those first few critical minutes. What do you think?
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1969 / 350 / TH350 / 3.73 posi / driver