anybody having problems with e10?

NSBCraig

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Aug 21, 2007
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I keep reading about people being concerned with winterizing a boat's fuel system since we all run e10 gas now. I'm in florida so winterizing isn't really a concern but...

I'm looking at getting a larger boat with a fuel capacity of a couple hundred gallons and was wondering what the issues are.
 

drewmitch44

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Jun 26, 2005
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Re: anybody having problems with e10?

I have been running e10 this is the third time now that i will be winterizing. So i have had 2 springs after the e10 winterization. I have not had any problems at all. Im running a 87' yamaha 115hp. I make sure to use up all gas though so i get everything as dry as possible. I use seafoam in a heavy concentrate in a 1 gallon container. Run the motor out of gas with seafoam in the 1 gallon. Then i pull the plugs and spray fogging oil in the cylinders. Then with the plugs out i crank the motor a few times to get everything lubed up in there. Whyle im running out the last of the gas in the 1 gallon tank, im running on the muffs. I have a big gatorade cooler that the consturction workers use for water. I put anti-corrosive anti-freeze in there and i have a "tap" hooked up near the muffs on the lower unit where i can open a valve near the cooler and the anti-freeze and the stuff is sucked into the lower by suction of the passing water. So its like a Y type thing i have hooked up right before the muffs. I prob. dont need the anti-freeze but i just like to make sure there is no trapped water in there. If there is it wont freeze. Then i spray everything inside the cowling with wd-40, after i clean all battery connections and use elec greece and re-connect it all. The wd-40 keeps everything from corrodeing, rusting and what not. Reinstall plugs and change lower oil and wait til next spring. Worked like a charm for the last couple of years. Fires right up in the spring. Just need to change plugs after burning off the fogging oil in the cylinders in the spring. Good idea anyway.
 

drewmitch44

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Re: anybody having problems with e10?

I got carried away with my process. My main thing that i meant to say is that i dont keep any gas in tanks over the winter now. Used to say to TOP OFF tanks before winter. But now i do the oppisite.
 

abj87

Petty Officer 1st Class
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Aug 4, 2008
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354
Re: anybody having problems with e10?

i have heard of some problems with e10 in some fiberglass tanks. i run e10 and havent had any issues but i use the fuel in my tank within 2weeks. When i put it away i plan on putting fuel stabilizer in the tank and calling it good.
 

Woodnaut

Chief Petty Officer
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Jul 4, 2007
Messages
634
Re: anybody having problems with e10?

I've been running E10 in a fuel injected outboard for the past few years with (almost) no problems. As everyone has noted, be sure to use a [compatible] fuel stabilizer.

However, one thing I can tell you from experience (and I'm really confident when I say this) is to make darn sure you are not getting any appreciable amount of water into the fuel tank. Im not talking about a little condensation from the air. (Personally I don't think that is a significant problem on a boat that is used regularly.) Rather I'm referring to a leaky filler cap or a poorly placed fuel tank vent. These items will permit the ingress of free water which will cause no end of grief until it is fixed. E10 combines really well with water - much more so than older gasolines. Even a 10 micron in-line fuel filter/separator will not remove the absorbed water. Keep the free water out out of the tank and life will be good.
 

tashasdaddy

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Re: anybody having problems with e10?

we've been running E 10 in Florida for years. with a fuel/water separator, no problems, unless you have the old fuel lines, need the alcohol resistant lines.
 

109jb

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Jul 15, 2008
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Re: anybody having problems with e10?

In Illinois we've had E10 for many years. I don't drain my fuel tanks and just use stabil or sea foam and have never had any problem.
 

NSBCraig

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Aug 21, 2007
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Re: anybody having problems with e10?

Thanks for the replies.

Yeah I'm kind of at the same spot with my Baja, I don't keep gas around long enough to have a problem.

What I'm thinking about is buying a 43' Bluewater Yachts Coastal Crusier for a liveaboard. If you don't know about them they are kind of more like a houseboat then a yacht but don't look like a basic houseboat. They only need 2' of water to float, are designed to be beached and still are seaworthy enough not to worry about going to the bahamas.

They run gas V8 inboards that are mounted as far as possible out to the sides of the hull with tunnels for the props. The combination of the mounting position and tunnels give it it's shallow draft. Being able to run in shallow water is real important around here.

I'm just trying to think this through and do as much research as I can.

I'm not positive yet but I'm pretty sure that they have two 100-150 gallon tanks. I'm really only going to be putting around locally and I'm not sure how often I'll be adding fuel.
 

tashasdaddy

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Re: anybody having problems with e10?

treat your fuel when you add it, stabil or seafoam. just insurance, and the filter.
 

lkbum

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Sep 1, 2008
Messages
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Re: anybody having problems with e10?

How old is the boat, I mean Yacht (blue waters are EXTRA nice). Anything around the early 90's or older may have gas lines that are not compatible with ethanol. I know this first hand as the gas lines on my 1990 Toyota Pick Up (made in Japan vs US) turned to goo when I started using Ethanol gas (about 2 years ago). One day I noticed the smell of gas around the truck (I don't use it very often), looked under it and the rubber section of the gas line from the tank to the hard line was wet. I touched it and it was tacky/gooey. Had to replace all rubber sections of the gas line. I know the word is out on fiberglass tanks (at least I hope so). An aquaintance of mine on lake lanier (North Georgia) lost his early 80's wellcraft this summer due to a leaking fiberglass tank (the model was one size samller than the Portofino, I forget what that one was called, it was a 35 foot cruiser). It blew up at the pump out station at bald ridge marina. He ended up with some pretty bad burns.
 

NSBCraig

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Re: anybody having problems with e10?

The boats from the late 80's so that's a good thing to check (hoses), I'm sure I'll be changing stuff like that anyway.

Don't know what the tanks are made of that's going on the good question list thanks.
 

lkbum

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Sep 1, 2008
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Re: anybody having problems with e10?

Here is a rather lenghty but informative articl from the LA times

ETHANOL IN GAS DAMAGING BOATS
by Elizabeth Douglas, LA Times

Something was wrong with Sally Ann. For months, she sputtered and choked, and Barry Treahy's remedies weren't working. He kept changing her fuel filters. Then he rebuilt her carburetor. Finally, he cut into her gas tank, cleaned out the mysterious caramel-colored gunk and patched her up -- twice.

Disaster struck on a summer day in San Diego, when Treahy's beloved 20-foot fishing boat was parked street side with the outer hull plug open to drain any residual water. The boat's 55-gallon gas tank failed and gasoline streamed into the bilge and down the street.

"I wasn't smart enough to figure it out at first," Treahy said of Sally Ann's chronic troubles. Finally, he found the answer in a boating magazine. Ethanol-laced gasoline was dissolving his boat's fiberglass fuel tank, sending bits of resin to clog filters and ultimately eating a hole all the way through the tank.

Years of adding ethanol to gasoline to reduce air pollution and foreign oil dependence has had a nasty side effect: The stuff appears to damage boat fuel tanks made of fiberglass. And California is a floating testing ground for the ethanol effect.

At the beginning of 2004, all gasoline sold in the state was required to carry 5.7% ethanol as a replacement for the banned fuel additive methyl tertiary butyl ether, or MTBE, which was fouling groundwater supplies. Some boaters were unaware of the ramifications of the switch.

Lawrence Turner, stuck with more than $35,000 in ethanol-related damage to his boat, decided to fight back. Last week, the Studio City resident sued Chevron Corp., Exxon Mobil Corp. and eight other gasoline producers and distributors in U.S. District Court, arguing that the companies sold gasoline at marinas without warning boaters of ethanol's harmful consequences.

"It caught me completely by surprise," said Turner, whose twin-engine, semi-custom Mediterranean sport fisher named Grateful Med is still out of commission. "I figured if you went to a marine gas station and filled up your tank, you were fine to operate."

Ethanol-blended fuel destroyed the boat's fiberglass fuel tank, and mechanics had to cut through the hull and remove the ruined tank piece by piece. A new, aluminum tank was being installed last week. Engine repairs are still to come.

"As I reflected on the situation, I thought about the fact that there were never any warnings from the fuel companies that the product they were selling could damage the tank that it was going into," said Turner, a 50-year-old accountant, attorney and diet company president. "What if people pulled up to their local gas station [in their cars] and all of the sudden their gas tank started dissolving?"

A Chevron spokesman said the company hadn't seen the lawsuit and couldn't comment. Shell Oil Co., one of the defendants in the lawsuit, Monday rejected the notion that oil companies were to blame for boat damage caused by ethanol-blended gasoline.

"There were years of advance notification that this change was coming," and ethanol's effect on fiberglass has been known for a long time, Shell President John Hofmeister said Monday while attending a low-carbon fuels conference in Sacramento. "Any boat owner or any boat seller or any boat maintenance shop that didn't know about this impending change and the potential consequences simply wasn't listening or reading."

Turner seeks damages and restitution from the fuel companies. He also wants the case to be given class-action status so other boat owners in California could recoup the cost of ethanol-fuel-related repairs. There are nearly 950,000 pleasure boats registered in the state, but it's unclear how many of those were built with fiberglass tanks and how many might have been damaged by ethanol-blended fuel.

Brian Kabateck, Turner's attorney, said an expert estimated that about 10% of all the boats in California have some sort of fiberglass material used in their tanks. Repair costs could vary dramatically.

Bob Adriance, technical director for the Boat Owners Assn. of the United States, said ethanol?s dangers were widely known these days among the group's 650,000 members. But skippers in California and New York, the first states to adopt ethanol-blended gasoline, had to figure it out themselves.

"They really got hammered because they didn't know anything. They just suddenly had filters being clogged, and then, some people not only had to replace their fiberglass tanks, they also had to replace engines," Adriance said. "It can cost tens of thousands of dollars -- more than the boat's worth in many cases."

Adriance said they also were the first to suffer from ethanol's other effects, including its tendency to scour a fuel tank of gums, resins and debris, carrying the gunk into fuel filters. Ethanol also attracts water, and over time, water-laden ethanol can separate from the rest of the gasoline, wreaking havoc with the engine.

Those problems require boaters to make adjustments, but they are manageable, said Adriance, who also edits Seaworthy, a publication by sister organization BoatUS Marine Insurance. He said newer boats had ethanol-tolerant fiberglass tanks and other components, but older boats with certain types of fiberglass tanks, rubber seals, hoses and gaskets and the like could be severely damaged by ethanol-laced fuel.

California's Air Resources Board, the agency that shepherded the switch from MTBE to ethanol as a fuel additive, was surprised to hear that boats had been damaged by the state's 5.7% ethanol fuel blend, which is well below the 10% blends common elsewhere in the country.

"If this reported case is with a California boat that was using California fuel, this would be the first that I've heard of it," agency official Jim Guthrie said.

He asked boaters to notify the air board of any problems, especially because California plans to raise the ethanol component in gasoline to 10%.

"To my mind, the state isn't in a position to know about all of the effects," said Adriance of BoatUS.

As for the lawsuit against oil companies, though, "it seems to me that they have a legitimate point," Adriance said. "Nobody told the boat owners. The oil companies or somebody ought to have warned them."
 

KPKID

Seaman
Joined
Aug 26, 2008
Messages
51
Re: anybody having problems with e10?

Sta-bil now makes a marine stabilizer that neutralizes the ethanol.
 

NSBCraig

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Re: anybody having problems with e10?

Hey IKBUM thanks for posting that!
 

Silvertip

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Sep 22, 2003
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Re: anybody having problems with e10?

Here in Minnesota we've used E10 since 1997 with very few issues. The main issue involves fuel systems that have been neglected over the years. E10 is an excellent fuel system cleaning so it cleans up the gunk that has been building up for years and as a result, carb rebuilds may be necessary as well as replacing the rubber parts (fuel lines, etc.) that are not ethanol tolerant. The issue with fuel tanks is with fiberglass tanks, not plastic. Ethanol attacks the resin and some of the adhesives used in the construction of those tanks. No fix for that.
 

BillP

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Aug 10, 2002
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3,290
Re: anybody having problems with e10?

we've been running E 10 in Florida for years. with a fuel/water separator, no problems, unless you have the old fuel lines, need the alcohol resistant lines.

You might want to note that the normal 20-23 micron water filter/separators won't stop all the water when using E10. It goes straight through to the engine and can make operation issues. 10 micron filters stop the water and are a straight swap for the 20s...but they plug up easier if the system is dirty. No additives are needed to run perfectly with E10 either.
 

NSBCraig

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Aug 21, 2007
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Re: anybody having problems with e10?

Hey thanks a lot for your posts. I really needed to know the info, not really for once I have it but it's really looking like a concern when considering the condition of the boat before I buy it.

thank-you.
 
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