confused about primary case oil....
when i first purchased my bike last year (66' TR6R) i asked the forum about what type of oil was best for primary...ATF Type "F" seemed to be the consensus. the service manual says SAE 20....and now i have been reading threads about people using the same 20/50 engine oil in oil tank and primary??? also saying that the primary oil can end up in crankcase, which if that is true, i would think using the same oil in primary would make the most sense.....can someone help clear this up for me, and tell me the best way to go? i am currently using a good grade motorcycle oil 20/50 rated at SG in the oil tank....should i use the same in primary? thanks, Rick