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Reply to "Procedure to break in rebuilt transaxle"

@Impala posted:

I also use straight 40 W Rotella to which I add STP oil treatment with zinc. Works for me and it’s inexpensive.

FWIW, Rotella T2 has the 1100-1500 ppm zinc that most folks recommend for flat tappet engines, that’s why I picked it. It’s been a favorite of vintage motorcycle guys for ever. 

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