I mixed it with old nasty oil that i soak rusty things in it should be fine also i do sorta care about it its cool just no oil i am only running it once like this anyway
Considering air fuel spark are good it still wont start plus i put myh finger in the spark 0lug hole of both and this one wouldnt even push my finger a little and the green one pushed air on my finger fine
Go out and buy yourself a compression tester. It's much more accurate than the finger in the spark plug hole method. And HF has one for like $25 or $30.
Addressing the original question... A quart of the cheapest 5w30 conventional oil you can find will cost like 3 bucks, and is guaranteed to be better than the wrong oil.
I'd say it's time to have that thing bored .030 over. Or maybe .060. Have you checked to make sure the rings are still in one piece (except for the oil ring)?