CP3 systems are designed to run within specific viscosity range - too much 2-stroke could have detrimental effect on engine operation, thru the injectors

There are always those who think if x is good, xxxx is mo' bettah - someone throwing two quarts oil in with the fuel can expect less than good results, for example.

And those who forget mixture ratios when topping off - it's all subjective.

MMO was formulated to clean sludge and gunk outta gasoline engine systems - 2-stroke motor oil was formulated to lubricate all engine components, and then be burned in the combustion chamber

I select each, according to it's intended useage, for what I intend to use it for