Anyone familiar with the raw beauty of Lake
of the Woods in North Western Ontario will find it easy to
believe that a recent government survey found sport fishing to be the most popular recreational activity in the region. Every spring, as soon as the ice breaks in Kenora, the most
serious fishermen launch their watercraft and do maintenance on their boat's engine. Its a ritual. The summer's fishing season brings an annual economic boom as thousands of anglers migrate to the region.
That’s because Lake of the Woods is
home to millions of healthy fish. In October 2006, an American tourist lodged at Big
Narrows hooked a muskellunge that
was just one inch and two pounds shy of Louis Spray's world-record (a 69-pound,
11-ounce musky on Oct. 20, 1949 at Chippewa Flowage in northern Wisconsin).
This is all great news for the adventurous fishermen who trek out to Kenora each
summer with hopes of hooking the world’s largest musky. Catching such a fish
would instantly transform the lucky angler into a major fishing celebrity.
But this summer, boaters on the Lake of the Woods will be discussing something else – a new ethanol blend gasoline is available
in the local marinas. Some users will feel good about saving
money at the pumps (it’ll probably be priced a few cents cheaper than regular gasoline), other users might feel satisfied protecting the environment by
improving their boat’s engine exhaust. But the most knowledgeable users will
congratulate themselves for keeping carcinogenic compounds such as MTBE out of
the water supply.
Good boaters, who take pride in their boat engines, will come to love ethanol fuels. Careless boaters who don’t properly maintain their boat
engines will loath this new energy innovation. Here’s why - ethanol absorbs
water, and improperly maintained marine fuel systems are very susceptible to water intrusion.
As per GreenField Ethanol’s fact sheets ,
E10 is 90 per cent gasoline and 10 per cent ethanol. It has the ability to
absorb 6,000 to 7,000 PPM of water into solution. That’s its water absorption
threshold - the water inside that chemical bracket will be combusted without
too much difficulty. But when the fuel is saturated beyond its capacity
to hold more water, ‘phase separation’ may occur. So here’s the skinny; in a
standard 375 liter tank, the fuel could hold about 2.5 liters of water without
separation. Engine problems will arise when phase separation leaves two
solutions: a high concentration of water and alcohol (that corrodes aluminum
and other engine parts), and gasoline with no oxygenate that can and probably
will damage the engine.
If phase separation happens, the only solution is to drain
the system and start over again.
E10 absorbs water directly from humidity in the atmosphere
through fuel vents in the engine and gas tank. In 100 days at 70 per cent
humidity E10 can absorb enough water to phase separate. E10 is a fragile
marine fuel that shouldn’t be left untreated for more than 60-90 days.
Non-alcohol based fuel stabilizers can extend the life of the gas in humid
conditions. Contrary to past practices it is now preferable to leave your boat
low on gas when you travel back to the city, and use the boat as often as
possible all summer long. For winter storage leave the tanks low (or empty) and
treat any remaining fuel with a non-alcohol based stabilizer additive.
Boaters can check their gas by smearing Kolor Kut on a paint
stick and plunging it into their gas tanks – this is called ‘sticking-a-tank’.
Upon contact with water, the golden-brown paste turns a brilliant red. Boaters
using ethanol can use the product to successfully gauge the water content of
the fuel (plus sulfuric acid, nitric acid, hydrochloric acid, ammonia, soap
solutions, salt, and other chloride solutions).
Fuel Ghoul has discovered that many Americans perceive
ethanol as being poor marine fuel. This is caused in part by numerous articles
on the internet and in boating magazines that focus on the negative aspects of
this new fuel in motorboats, but almost all major marine engine manufacturers
have said that ethanol blends are acceptable fuel choices.
Boaters must add common sense to the mixture, and will benefit from knowing the follwoing basic principles in ethanol boat engine management.
First, do not mix ethanol with old formula fuel in the same
tank. Ethanol does not combine well with
Methyl tert-butyl ether (MTBE) - this oxygenate is added to gas to chemically
reduce emissions as it increases combustion.
Avoid water infusion into fuel system, and add non-alcohol
based fuel stabilizers in the boat fuel system at all times – this is
especially recommended for equipment that sits for extended periods with light
use. Remember, the more actual use the boat gets, the less likely it is to have
problems. Don't leave large quantities of E10 fuel aboard idle boats.
Use proper fuel filters. Install good quality, ethanol
compatible fuel filters and keep a supply of spare filters on board. Also
remember to store the proper garments and necessary tools for spontaneous fuel
filter changes. Responsible boaters will bag and store the old filter, and the
gasoline it contains, onboard.
Remember ethanol and fiberglass fuel tanks don’t mix. Also
fuel lines older than late 1980's should be inspected carefully and probably
replaced. Some older carbureted engines may require special tuning – these days
it’s easy to research the specs online at the engine manufacturer’s website. In
fact, the best thing boaters using ethanol can do to make sure their boat’s
engine is set to the manufacturer's tune-up specifications.
Fuel Ghoul congratulates all boaters using reformulated
gasoline – they’re improving their motorboat engine’s emissions, and protecting the
environment for future generations.
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