2 stroke injector oil might just resemble crude again after millions of years... but that aint crude oil yer dumpin' in there. I said 14 years or so old is
probably fine, but I suspect there is some viscosity breakdown and the potential for foreign contaminants... heck - it may not even be what it's labeled.
I have no idea if 2 stroke oil is susceptible to the same breakdown that gasoline and other petroleum products (even plastics) are prone to with age, odds are it doesn't matter with a low compression engine like yer moped - I just said I wouldn't dump it in
my bike, I'm picky like that. It ain't worth the coupla bucks to find out
I have a question tho, if you had no interest in a potentially negative answer - why did you ask?
*shrug* no worries, I'm not sweatin' it lol - I do understand the joy of findin' a riding partner... I wish like **** I could find one 'round here. Guess I'll just hafta finish another build and use the Schwinn as a loner heh