rancheroracer said:
That must be the new SM. I bought several gallons of the SL, it seems to be readily available around here, although I don't know long til we see the SM only.
I am perplexed about folks using diesel oil for motorcylcles. Diesels are low revving cooler running vehicles, aside from the clutches working OK, an oil formulated for a diesel seems like a far reach comparing it to a hot running high revving motorcyle. In 1981 I took the advice of a friend and used Castrol GTX for high revving motors it said on the can, and used it in my Harley in lieu of the 60w Harley Oil I was running, and took my bike on the Redwood run from Stockton, CA to Eureka, CA and back, and it foamed up like A&W root beer, and I lost my rod bearings on the way home. Just my 2 cents.
Here are some lab comparisons of most major motorcycle oils:
http://www.synthetic-motor-oil-change-a ... -20w50.php