That mr funnel is interesting. I have one 5 gallon can left that was treated and one that was not. Some of you may remember, I treated 8 cans, and have been opening them up over the last 4 years... every 3 month, then six, then yearly. I may see if I can find one of these locally, and then transfer the gas from each to see what has been left behind. Sounds like an awesome end to a multi-year experiment.

eta:
I have 2 cans of diesel untreated from about 3 years ago... will try that too!