While your at it try mixing 10w-30 with gas and run it in yr trimmer.
Not that I would think it is OK and not going to do it on any of my 2 cycle equipment. I was talking to a older gentleman who lives in the northern NY
Adirondacks was telling me that all he uses in his chainsaws 10w-30 oil. He was telling its easier to find then 2 cycle oil. Don't know how much he uses
this chainsaw or how long it lasts but I guess it can't be all bad? I really can't see a advantage of using the wrong oil but I guess it would be better then no
oil and I really can't see why instant damage with 2 cycle oil in a 4 cycle engine. I really can't see putting gas into it other then to shorten the life of the engine.