Here in RSA the std oil for petrol is 15w50 or 20w50. Just did a ring job with a good hone, & valve stem seal, new gasket & pressure test on head, compression is on average 14 psi. no Misfires, no oil usage, no coolant usage. engine sounds very good, starts easy. just the smoke issue, check breather pipe, tappet cover for blockage. Waiting for coolant guys to do dye test.. besides than. I'm out of options or answers.. most frustrating.
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