Trying to clean up and not spend a lot ! I mix the ratio were there was oil coming out the muffler .Never will mix it that rich again .50 to 1 is more than needed . After running shell for years that worked .Just don't like looking at pistons that have black lung . This is the first try Lucas 2-Cycle Land & Sea Oil TC-W3 : Lucas Oil - Lucas 2-Cycle Land & Sea Oil TC-W3