Hey Wayne,

I've found that mixed fuel will stay clear MUCH longer in the blue jerry cans as apposed to the clear 10L Cdn tire jugs. The blue jugs may filter the UV better. Another suspicion I have is keeping the jug sealed. I'm really guessing here, but the algae growth or possible oxidation of the oil may be hindered by a lack of oxygen, so sealing it may cause it to stop one the O2 in the air volume is used up... Anyway, my result was that I had one of my extra 20L jugs containing mixed fuel last more than 2 years, and when it was close to empty I could only see a slight hint of brown. I was always tempted to dispose of it, but each time I checked it the fuel was still clear!

I also have a 45Gal drum in my shed that I've been working off for a few years. Any condensation and debris will have settled to the bottom, so its important to just let it sit there for a long period before feeding off the top. Its still clear and runs great!

Kelly