all my life i have used brand named oils,then this topic came up on here a few years ago and a bunch of guys said they were using the super tech from walmart,so i tried it and guess what,my motors are still purring like kittens,almost 30 year old 2-strokes!!!!!13 bucks a gallon instead of almost 50 bucks a gallon for yammie oil.THANKS FOR SAVING ME HUNDREDS OF DOLLARS A YEAR!!!!