you don’t have to worry about thermal expansion, all fuel tanks are externally vented, so filling the tank with suspected ethanol fuel is just going to give you more ethanol to absorb more water from the air(remember its externally vented)till it pukes out the vent line, you end up puching the good fuel out thru the vent, keeping the crap on the bottom. Fuel is lighter than water or ethanol/water mix. A few years ago I experimented with an old aluminum tank siting in the back yard, I left it allmost emtpy and moved it from the sun to shade. Kept it covered so no rain would get in it. Piled a bunch of wood on top of it for a while(not intentional). had it sitting under my boat for a while. Just about did anything I could do to simulate it being in a boat(actually had it sitting in my boat under a cover). I never got any measureable amount of condensation or water in it( it still had a little old gas in it, I was using it in my lawn mower). Leaving the tank full is total BS. You just end up with more bad fuel to deal with when you let it sit too long. Feel free to leave it full, I charge to dispose of old gas when I rebuild the fuel system on a boat.
quote:
Originally posted by solo464646Oh how stupid of me to buy this fuel filled with ethanol down here where I live in Hilton Head when all I had to do is drive up the road to Charleston to get the good stuff…How do you know it is NON ETHANOL fuel… because it says on the sign???Do you believe everything you read or hear…… If you do I have a bridge I would like to sell you… It’s a hell of a deal…
26 cape horn 200 yamahas
I read that CF has a classifieds section, this is in the wrong forum:roll_eyes:
I hope you believe me, seeing as how you’re reading this.
Matt
17’ McKee Craft
Hell, why not post it here, this thread has already been hijacked to a gas thread while the original poster was asking about muffs. Speaking of “muffs”, I have to go.
Rick
"No big deal? How can E-10, which attracts moisture and can fall apart, be expected to survive the winter? With any fuel that will be sitting for a long time, it is important to add stabilizer—an antioxidant—to extend the life of the fuel. (E-10 and gasoline with MTBE have the same shelf-life—roughly a year.) What a stabilizer won’t do, however, is prevent phase separation. Just how you do that is subject to some debate. Several sources, including one prominent engine manufacturer, recommend running the tank down to almost empty and then adding stabilizer. The following spring, the tank can be refilled with fresh gasoline. Lew Gibbs, a senior engineering consultant at Chevron, worries that leaving a few gallons of gasoline might attract enough condensation to cause phase separation. If that were to happen, the highly corrosive ethanol/water mixture would settle to the bottom of the tank and would remain there even after the fresh fuel was added in the spring.
Gibbs said his first choice would be to completely empty the tank when the boat is laid up and then refill it the following spring with fresh gasoline. No ethanol = no ethanol-related problems. Unfortunately, completely emptying a built-in tank safely is nearly impossible. His next choice, one that’s more practical, is to top off the tank to 95% full (to allow for expansion). A tank that’s almost full reduces the flow of air into and out of the vent, which reduces condensation on tank walls. Any condensation that does form will be absorbed by the gasoline. (Note that the National Fire Protection Association [NFPA] also requires tanks to be topped off to minimize explosive vapors.)
Gibbs said the worst choice, which was confirmed by marina owners in the Midwest, is to leave the tank half-full over the winter. Jerry Metzger, the general manager of Chicago Harbor’s nine marinas, said phase separation problems typically occurred when boats had been stored over the winter with tanks that were a quarter to half full. The tanks breathe more and attract large
the more often you run a motor the better
no reason at all to run it more than 10 minutes
we run engines in a drum all the time, as in almost every day
as for the e-10…
I agree whole heartedly with spareparts.
I would much rather have a quart of phase seperated gunk in the bottom of the tank, that WILL stay at teh bottom, and immediately be picked up when you pump the primer bulb, and be caught in the racor, than a tank full of low octane fuel.
I’m now at www.teamcharlestonmarine.com