nope, drain and fill with synthetic.
i tried a lot of 2-stroke oil brands for my kicker and found castrol 2 stroke full synthetic to smoke/smell the least, but every time the wind blows i threaten to buy a 4-stroke.
"I'm sick of all the fairytale stories of how this is destiny and how the saints have rebuilt new orleans.Sorry but you can write the script anyway you want but the actors(sean payton and crew)do not have the talent to step on the stage."---Logan Wade