Originally Posted by JimVonBaden
You can use any high quality 10W40 oil you wish. Dino or synthetic is fine. Just do not use high detergent oils for older motors.
Contrary to popular opinion. You bike will not self destruct if you mix oils. I like the Mobile 1 15-50. But I cant always find it. So I use what ever else Wally or Autozone has that looks good. I even dumped in some cheap 10w30 from a convience store once in an emergency.
The bike was just fine.