Fred says any two stroke oil will do. He's the master, so i trust that.
The guys at my local shop said to run the "loosest" synth I could on my scooter. They said the thick stuff (like 2 stroke boat oil) won't go through the injector as well
I sloshed both around... you can see a big difference in the synth.
if you're doing pre-mix, I think (opinion!) any oil will work fine.
if it's being injected, and it's getting cooler where you are, you might want to get a gallon of the thin synth made for oil injectors...
And, someone was saying something about "Amsoil" and how it made bikes and chainsaws run like new.
most of my bikes have been injected, and like Fred says, I used ANY 2 stroke oil I could find. Once I put the kit on my scoot, the guys at the shop nicely asked me to use synth so their hard work didn't blow up.
The scooter is running fine, and I don't know if the synth makes a difference, except that is is CLEARLY much thinner or looser than the regular. I guess that means even cold, plenty will make it to the piston.
2 cents. hope it helps. They also told me the chemicals in boat oil could gunk up the injector.... don't know how true that is.
They said that boat oil was BAD. I almost wanted to tell 'em to "Go ask Fred...!"