Gasoline Octane
Ethanol Fuel
Gasoline Octane and E10 Ethanol Blend Fuels
Important E10 Ethanol Fuel Precaution: Ethanol alcohol fuel blends expire in 90 days; When exposed to excessive water, they may expire even sooner.
Studies have shown that after only 100 days, alcohol fuels absorb enough moisture to phase separate. Octane will drop when fuel phases separates...
If you are not monitoring or "testing" your gas for alcohol and water content, we recommend replacement of gas in your fuel tank at least every 2-4 weeks to avoid alcohol and water related engine problems.
Alcohol blend fuels become contaminated by water dilution (phase separation) very quickly. When this occurs, gasoline octane of the fuel in the tank may frop as much as 3 points...more information coming soon...
Protect Your Engines From Alcohol Fuel Damage.
ALCOHOL FUEL TEST KITS:
Tests fuel for alcohol and water content.
Inexpensive. Re-usable. Simple. Easy. Accurate. Fast!
Simple, easy, accurate. Mix small amounts water and fuel from pump or tank into the test tube included, shake to mix the contents. Wait a few minutes until settled. An increase in the amount of water on the gauge indicates that alcohol is present in the fuel. The gauge will also indicate the percentage of alcohol. View testing procedure and instructions.
Fuel that tests greater than 10 % alcohol is "bad" and should not be used in conventional engines. Some motors (airplanes and certain marine engines) can NOT use fuel that contains alcohol. Check with the motor manufacturer for fuel recommendations.
Alcohol Fuel Test Kit Information - FUEL TESTERS Contact Information
By 2008, most gasoline stations have switched to ethanol-blended fuels, replacing MTBE, for oxygenating fuel. The gas pumps are not required to disclose that gasoline contains ethanol alcohol in almost all states!
Ethanol is an Alcohol Fuel...
Ethanol is an alcohol renewable fuel, made from corn or grains, which is used to oxygenate gasoline fuel at the pumps. Ethanol is hygroscopic (will absorb water), and is an excellent solvent (dissolves materials). See About Ethanol Fuels - Ethanol History And - What is gasoline and E10?
Due to ethanol's affinity for water, phase separation and water contamination occurs very quickly.
Ethanol Fuel - What's the dangers?
Simply put, ethanol is an excellent SOLVENT (dissolves plastic, rubber, fiberglass and more), and unlike MTBE ethanol will ABSORB WATER, which can cause serious problems to some engines.
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An Alcohol Fuel Test Kit will give you the data you need to keep engines safe with E10 gasoline.
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Octane is a rating, similar to a ratio of measurement,
not a substance chemical or product you can add to gas.
Determining octane measurements involves
a complex methodology.
Although there are now companies selling "portable" octane
analyzers (testing equipment), but their use by your typical
consumer is limited by a cost range of 2-5 thousand dollars.
"Gas Purifying Equipment" also is available,
but like octane analyzers their high price tags
often limit use by the general public.
Alcohol - Ethanol Fuel Testers have become very affordable by use of a new portable kit that sells for only $ 24.95. VIEW Ethanol Alcohol Test Kit.
When fuel absorbs moisture the octane reading will dramatically decrease.
Gas is available at different octane measurements - E.G. 87, 89, 91 or 93.
Fuel that has experienced water contamination (W/C) and phase separation (P/S) will decrease about 3 octane points...
This means that if you purchased fuel with an 87 octane level, after W/C and P/S will decrease to only 84, (an unsafe level for most engines).
Proper management when using alcohol-blend fuels will avoid this problem.
Some people chose to purchase a higher level octane blend when purchasing E10 fuel - to prevent octane from reaching a dangerously low level if fuel contaminates.
To avoid wasting money on gas that will contaminate quickly always purchase high quality fuel, follow necessary precautions, and refill tank often.
Replacing fuel in your tank every 1-2 weeks will usually limit the occurence of PS and WC.
Of course, there are other situations when irregardless of how fresh fuel is, the fuel will go bad - causing decrease in octane and other negative effects on ingredients contained in fuel.
There are several factors that will affect the gas octane number -
Running on gas with the appropriate octane rating will offer best performance and increase the useful life of the engine.
To maintain the octane rating listed at time of purchase, ethanol precautions that protect fuel quality is always your best strategy!
Check your STATE ETHANOL LABELING LAWS
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