JKV357- yea, i was a little leary when he said it was ok to use automotive oil, but he said it would be fine..so i filled it with 10w 30 synthetic because i had it on hand and there were no shops open that sunday night to get moto oil..so before i added the oil i called back one more time to ask the guy if he was sure and he was so the bike has a crank case full of oil but i havent ridden it since..i changed the oil as one of my winterizing chores for the bike..i guess if worse comes to worse i could drain the synthetic automotive stuff i just put in and replace it with proper oil..whats your take?