Yes this is all good information. If using E10 run the tank empty before storage. Only put the amount of fuel in the boat that you will use in 2 to 3 weeks.
Three years ago I stored my boat with stabilizer and a full tank of gas using E10. I had engine failure, when the engine was disassembled the tops of all the rod berrings were taken out. All signs led to pre detination due to bad fuel. I would never store a boat for any length of time with E10. Same with your mower, leaf blower, trimmer, ect....

I live in Iowa and we burn it in our cars and trucks for every day use and we have never had a problem with it, but like jeffsway said, I would never use it in my mowers atv's or my boat. E10 is not designed for those types of vehicles and I believe most manufacturers of those vehicles don't recommend using it.

Ya know what sucks is I found out about this issue after the boat is in storage and practically full of fuel for the winter and odds are it was e10. Makes me wonder if I shoul pump it and start fresh this spring? I will make sure there is a good water seperator as well this spring.

You said you would never use it in your mowers, ATV, or boat.....how do you do that? When VA switched to E10 3 years ago, EVERY station switched, even marinas. I can't buy fuel without it unless buying aviation fuel (or diesel)

We can still get both here and I only use 91 none blend in the boat. I guess I just assummed people still had the option. That sucks if thats all you can use.

Shelf life of good fuel is about 30 days. Good luck trying to suck 75 gallons of fuel out of the tank. You should be ok on a stock motor but take it easy during that tank of fuel. Careful on using any addatives with the thought you will be helping it. Most addatives are loaded with alcohol. I run 93 in mine because I have a procharger and would love to stay away from ethanol blend, but being in the Chicago area it is not an option.

Take out the fuel sending unit and start pumping...I don't know what I'd use 50-70 gallons of fuel in that is 6 months old, but you can mow alot of grass!!!

In Mi the Mi farm bureau association petitioned the legislature to introduce a bill (that did pass) that lifted the requirements that all pumps must post ethanol content of the fuel they sell. So now you can't even tell what you are buying unless you talk to the stastion owner and he's honest with you,Smitty

I had the oportunity to talk to a BP station and supply owner, pretty good friend actually. They have many stations as well as a farm service and more. He said point blank everything has ethanol in it at least 10%. He also used to be on an advisory board and this issue with marine and aviation use has been brought up every year and that these are the two areas nothing seems to change in. Also spoke that a min E20 is coming and then we boaters will have real issues. He did say next year he could get me 10 or 20 gal of non blend for when I store it, but it would not be easy. From what he said there is no way to avoid ethanol anywhere at anytime it is there at 10%.

Why does it seem to effect boats more than cars? Not the boats that have old gas, but I've even had problems with fresh gas. Took me over 1/2 hr once last summer to get both of my motors started after sitting for a coulpe hrs tied up. Seemed to be really sensitive to vapor locking. This happened twice. Never had this problem before last yr.