So my wife decided to help out an pick up the leaves with our bagging lawn mower over the weekend while I was at work. I came home and she proudly asked, "Did you notice the lawn?" I was pleased to see there were no leaves. The next day I went out to the shed, and saw the little gas can I have that is labeled "16:1 Saw" that I use for the chainsaw, was out of it's place from the shelf, on the floor near the empty regular gas can. Long story short, she topped off the mower with the 16:1 chainsaw fuel. She claims it ran fine with it. I have yet to start it myself, for fear it may harm the engine. Do I need to siphon it out, or is it ok to run it the way it is? If I had to guess, it would just burn the oil that is in with the gas, and smoke like a 2 cycle engine, but I wanted to make sure it was ok to do so.