Originally Posted by WyrTwister
I try to use it in small engines ( lawn mower , edger , etc. ) .
This ^^^^^^^^^^^^^^^^^
I think it helps to avoid ethanol gas in small engines. Most all the small engine manufacturers recommend an ethanol fuel treatment like, "Ethanol Shield" if you have to use it. Ethanol free motor fuel is difficult to find, and very expensive if you do.
So for small engine use you're almost better off to buy either VP or Tru Fuel at Home Depot or Lowe's. It's more expensive, but all you have to do is pour it and use it. By the time you screw around buying and treating the ethanol gas you're further ahead. Plus the stuff has a 2 year or more shelf life. Naturally if you have to mow 5 acres every week, that's a different story.
Here many of the local stations sell Av-Gas because of all the high performance boats around here. But again the stuff costs a mint.