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Question about ethanol fortified gas and boat engines

Our state just switched from the old MTB?? additive to Ethanol. Some of the stations have stickers on the pumps saying you should check your boat engine to see if it can handle the ethanol blend or if it needs some preventative maintenance before running the ethanol blended gas.

I've got an old Johnson 80 HP outboard. What do I need to check?

Till

tillius
Apr 23
2006
Power to the People! Don
Apr 24
Till wouldn't know a commie if one bit him on the butt. He's just another brain-dead Bert. Harry
Apr 24
The thread seems an obvious butanol troll. How quickly he gathered all that new info on the ethanol vs. butanol debate.

jps

jps
Apr 24
Nope, wasn't a butanol troll. Was a sincere question about what I might need to do to my engine because of the ethanol issues. Found the butanol info while I was searching the ethanol problem. Was just provided FYI until comrad Krause had to interject idiotic remarks into the thread.

Till

tillius
Apr 24
You don't appear to need any help with that. Harry
Apr 24
Thanks to all for your info. Just for everyone's benefit in the future, here's what I've found out so far:

1). The Ethanol in the gasoline will break down rubber hoses faster. It's a good idea to replace them if they're older.

2). The Ethanol can cause problems with some older fiberglass tanks. View the article below for more info: http://www.findarticles.com/p/articles/mi_m0BQK/is_1_11/ai_n16019367

3). The Ethanol will attract water and hydrated ethanol will sererate from the gasoline or cause a thicker, gunky emulsification with the gasoline. Both of these situations can cause fuel line/injector clogs. Recommendations: Keep fuel tanks full to minimize moisture absorption. Also, use a fuel injector cleaner/treatment every other tank or so of fuel.

4). When gasoline containing MTBE and gasoline containing ethanol are mixed, a reaction with the MTBE and ethanol fuel mixtures can cause fuel problems including clogged fuel lines/injectors, sputtering or inoperable engines, etc. Recommendations: Use all of the MTBE fuel in your tank before filling with the ethanol blend.

5). Why the heck didn't they use butanol instead of ethanol? I would've served the same purpose, but is less corrosive than Ethanol and actually increases the octane rating of the gasoline blend.

Till

Support the production and use of butanol biofuels as an alternative to petroleum based products. 1) It's 100% interchangable with Gasoline with no engine modifications. 2) It has a higher octane rating (103) 3) It's produced from renewable crops such as corn, barley, wheat, or crop processing byproducts, such as mollasses. 4) Combustion of butanol produces only H20 and C02 (green CO2, not fossilized CO2). 5) Production of butanol from bio-sources produces only butanol, hydrogen (collectable and useable as a fuel source in the butanol production process, and bio-by-products that can be used as livestock feeds. 6) Butanol can be produced for about $1.05 - $1.25 per gallon.

tillius
Apr 24
Gosh, I guess we don't have the brainpower to resolve combustion engine difficulties with ethanol. Let's give up. Harry
Apr 24
I don't give a damn what you do. Why should I? Harry
Apr 24
He's desperate for at least one person to pay attention to him. Don
Apr 24
Well, hardly. You're a bit annoying with your left wing dribble too. I did notice that, unlike Comrad Harry, you do occasionally post about boating. That'll probably keep you out of my commie-killfile for a while, at least.

Till

tillius
Apr 24
The biggest hassle about ethanol is it is alcohol so it attracts water.

"tillius" <tillman.stevens@gmail.com> wrote in message

James
Apr 24
Ethanol will break down rubber hoses faster since it's alcohol. If you have hoses closing in on their useful existence, now might be a good time to look at changing them out.

jps

jps
Apr 24
It's also been found to be a problem with (some?) fiberglass fuel tanks. See the link below:

http://www.findarticles.com/p/articles/mi_m0BQK/is_1_11/ai_n16019367

tillius wrote:

Bill
Apr 24
   

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