WOW, thanks for the FAST feed-back guys. I was told this oil was really good for the Wing, but I just didn't know if anyone else used it. I use it in my diesel truck and now have it in my Trike. If diesel trucks can go a million miles or so, it has to be good and should be as good or better for bikes as anything else. Really appreicate all the replys. I feel better now. Also, for anyone interest, about once a year, I fill-up my Trike with fuel and add a pint of diesel. As you know it burns a little hotter and really cleans the inside of your engine. I wouldn't recommend adding anymore than a pint because it does burn hotter. Wouldn't want to burn anything up. I also add a gallon of gas to my diesel truck once a year. It seems to clean the engine a little better than the addivities you buy and is cheaper. Just though I would throw this info out there for anyone interested.