klotz supertech in the alky bikes. 32-1 i hate the 927 in the alky bike, because they stick pvs really quick.
gas one old trail motor ran whatever was lying around or at the local gas station for years. motor lasted forever. it had , lucas, masterpro, klotz, 927, yamapube, some green mower stuff at the gas station, lots and lots of walmart and penzoil tcw3 outboard oil in it also.
any klotz oil is going to be premium stuff. any price in the 40-48 buck range is pretty normal. i order mine from rockymountan atv with some other parts usually for free shipping. 42-44 bucks