Fuel Testers supplies the knowledge and resources you need to protect your engines from alcohol fuel - Auto, Marine, Aircraft....
Ethanol alcohol, a renewable reformulated fuel, supports the farming industry and decreases U.S. dependence on foreign fuels.
Ethanol alcohol blend fuels, made from corn & grains, can damage engines.
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CORN FUELS...
AVOID all Gas Additives & Fuel System Treatment Products that contain alcohol
and/or attract or absorb water with E10 gasoline.

Products that contain strong solvents and emulsifiers should also be avoided with E10.

Carefully review ALL ingredients of fuel treatment products before use in E10 gas.

Avoid gas additives and fuel system treatment products that:
  1. Are water soluble. Terms "hygroscopic" and "miscible" describe the ability to attract and absorb water.
  2. Are listed as "not compatible with strong oxidizing agents or alcohol".
  3. Claim they will stop phase separation or remove water - Impossible, if any ingredient existed that removes all water it would already be in all gasoline sold.
  4. False claims that product will "prevent, fix repair and/or reverse" all ethanol-related fuel problems.  No such miracle products exist.
  5. In high risk situations, certain additives will offer some benefits with E10.  Ignore the marketing slogans and focus on whether or not the ingredients listed will help with the specific problems you are having.  No retail product will remove water. Many products just contain solvents and cleansers.
Since ethanol is a very strong solvent and cleanser, use of additional gas additives with E10 is often unnecessary.

        Following simple precautions should be enough to safely manage E10 in most (newer) engines, while replacing fresh gas every 2-3 weeks.

REVIEW LIST BELOW:  Does your gas additive contain alcohol?
Is your gas additive safe with E10 fuel?
031709 0130
Gas Additives categories that most likely contain alcohol include:
Gasoline Water Removers - Fuel System Cleansers - Fuel Conditioners - Fuel Detergents - Fuel Stabilizers -  Rust Inhibitors - Octane Enhancers -

Learn the names of alcohols to avoid using fuel additives containing alcohol in E10 gasoline.

COMMMON NAMES OF ALCOHOLS:

Ethanols: ethyl alcohol, isopropyl alcohol, grain alcohol, alcohol sulfuris, ammonia in alcohol, aromatic spirit of ammonia, carbon disulfide, denatured alcohol, diacetone alcohol, rubbing alcohol, spirit of wine, t-Butyl alcohol...
Isopropanol Alcohols: 1-Methylethanol, 2-Hydroxypropane, 2-Propanol, 2-Propyl alcohol, Dimethylcarbinol, Isopropyl alcohol...
Names of chemicals similar to ethanol: 2-Butoxyethanol, Butoxyethanol, Butyl cellosolve, 2-butoxy- Ethylene glycol, mono-n-butyl ether, Ethylene glycol monobutyl ether, Monobutyl ethylene glycol ether, n-Butoxyethanol...
Methanols: Ch3OH, methyl alcohol, methylated spirits, methylcarbinol, wood alcohol, carbinol...
-----------------------------------

NOTES
Information contained in above chart primarily obtained from product manufacturer official MSDS and product literature.
We are not responsible for any typographical errors.
If you believe any information is inaccurate send documentation to fuel.testers@yahoo.com

General Comments: The brand of gasoline and type of engine should always be considered when choosing to use any gas additive product.
Gasoline already contains many of the same ingredients used in many fuel additive/gas treatment products.
- Often the 10% ethanol in E10 replaces the need for any additional fuel system cleansing agents or solvents. -

The information listed on the products above is solely to inform you which products contain alcohol and or attract/absorb water so you are better informed to chose an appropriate E10 additve, when necessary -
Over the years we have received numerous reports from consumers who have experienced engine damage from contaminated (E10) gasoline. There are many varied reasons for actual cause of damage, including poor quality gasoline, improper E10 fuel management, misuse of gas additives. and more...

We chose to refrain from recommending any specific products, since engine details and use are necessary in choosing an appropriate additive or not, but we wish to state:

Warning: Because we have received so many reports of gas problems from consumers who have used either K100 or Ezorb, we feel obligated to mention this here.  Our conclusion that these 2 products are contraindicated for use in E10 gasoline is based on a large number of consumer reports and information contained on company's website and MSDS, when available.
There are several other products listed in chart above that we believe are contraindicated for use in E10 fuel (based on ingredients) - We will add them to our warning list if and when we receive many reports from consumers who believe additive was primary/sole cause for problem.
Hint: You do NOT want to force excess water back into gas; You do NOT want to add ethanol alcohol to manage E10 side effects;
Strong emulsifiers will not only force alcohol/water back into petroleum gas, they may also solidify engine lubricating oils and gasoline ingredients, causing clogging, gelling and gunk throughout the engine.

Notes:
(1) Shellsol is an industrial solvent chemical found in many products. Shellsol D60 chemical name = Solvent Naphtha (Petroleum) Medium Aliphatic. Shellsol is a registered trademark of Shell.
(2) Seafoam MSDS lists "IPA" under ingredients. The only commonly used term for abreviation IPA =Isopropyl Alcohol. Isopropyl alcohol is soluble in water. Seafoam Sales Company did not respond to our request for more information.


PRODUCT NAME


PRIMARY INGREDIENT
CONTAINS
ALCOHOL
WATER SOLUBLE/
ABSORBS WATER
MSDS
Reviewed
#131 Neutra Fuel Stabilizer (Schaeffer)
N-Butyl Alcohol
YES
YES
X
CD2 Engine Tune-up
Methanol 60-70%, isopropanol alcohol, 2-Butoxyethanol, Diacetone alcohol
YES
YES

Chevron Techtron Concentrate Plus
Distillates Hydrotreated Light, Stoddard Solvent
NO
NO
X
CRC for Gas Tanks
Isopropyl Alcohol
YES
YES
X
CRC Marine Fuel Stabilizer
Hydrotreated Naphthenic Oil
NO
Negligible
X
Eth-Guard Complete Fuel Additive
Hydrotreated Naphthenic Distillate
NO
NO
X
Evinrude 2+4 Fuel Conditioner
Isopropyl Alcohol
YES
YES
X
Ethamax Gasoline Fuel Treatment
Ethyl Denatured Alcohol
YES
YES
X
Ezorb - See warning below.
Unknown
N/A
YES
Not available
Iso-Heet
Isopropanol Alcohol
YES
YES
X
K100MG Marine Gas Treatment - See warning below.
2-Butoxyethanol
YES
YES
X





Klotz Octane Booster (KL602)
Petroleum Distillage NOS-Does not identify specific ingredient or CAS#.
"Not Alcohol Compatible"
YES
X





Johnsens Octane Booster
Petroleum solvent (mineral spirits), MTBE.
No
Slight.
X
Lucas Fuel Conditioner




Lucas Octane Booster
Parafinic Distillate (Mineral Oil), MMT.
NO
NO
X





Mercury Marine Fuel System Cleaner
Refined Petroleum Oil, Isopropanol Alcohol
YES
YES
X





Mercury Marine Fuel System Treatment and Stabilizer
95% Isopropanol Alcohol, 5% proprietary additive (trade secret).
YES
YES
X
Mercury Quicksilver (Citgo)
Stoddard Solvent
NO
Negligible
X





Neutra Fuel Stabilizer (Schaeffer)
Butyl Alcohol and Cresylic Acid
YES
YES
X
Octane Boost Super 104 Red (Gold Eagle)
*Proprietary additive, Petroleum Distillate, Hydrotreated Petroleum Oil.
*Unknown
NO
X
Pennzoil Marine Fuel System Cleaner & Stabilizer
Petroleum Distillates
YES
NO
X
Prestone Gas Treatment
Isopropyl Alcohol, Methanol
YES
YES
X
PRI-G Gasoline Fuel Treatment
ShellsolD60, mixture of amines, organic dispersants.  See Note (1 )
NO
YES
X
Quickleen Engine Treatment (Mercury)
Alkylphenol polyoxyl alkylamine +
NO
NO
X
Quicksilver Fuel System Treatment & Stabilizer
Isopropanol Alcohol
YES
YES
X





Seafoam Motor Treatment
Pale Oil, Naphtha, "IPA" Isopropyl Alcohol. See Note (2)
YES
NO  See Note (2)
X
Snap Gas Line Antifreee (Penzoil Quaker)
Methyl Alcohol, Stabilizer (trade secret).
YES
NO
X
Stabil Fuel Stabilizer
Petroleum Distillate Naphtha Solvent 95%, Additive Mixture 5%.
NO
Negligible
X
Stabil Marine Fuel Stabilizer #22204
Petroleum Distillate
NO
Negligible
X
Starbrite Gasoline Water Absorber
Methanol
YES
YES
X
Starbrite Startron Gas Additive
Naphtha Solvent (Petroleum)
NO
NO
X
Turbo Octane Boost 108
Isobutyl alcohol, Methanol and t-butyl alcohol
YES
YES
X
Valvtect - Removed from list, since company has not responded to our requests for information on their products and additives contained in their branded marine gas.
X





Yamaha Fuel Stabilizer (Gold Eagle)
95% Isopranol Alcohol,
YES
YES
X





Wynns Fuel System Treatment
Petroleum Distillate
NO
NO
X





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Fuel Testers provides information and gas alcohol test kits to manage E10 ethanol blend renewable fuels.
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Alcohol Fuel Test Kits and Quik-Check will check both gas and liquid gas additive products for
exact ethanol/alcohol content.
Complete alcohol fuel test kit includes fuel-tester, Quik-Check solution, collection/dispenser bottle, E10 precautions and more.
Fuel-Testers Reusable Portable 
Ethanol Alcohol Fuel Test Kit
GAS ADDITIVE PRODUCTS - Review notes below list -
Avoid alcohol-containing gas treatment products when using E10 fuel.
Portable, reusable Ethanol Fuel Test Kits check presence of alcohol in all types of liquid.