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Member Tested

Product Reviews

Instantly checks gas for the presence of alcohol and water. The solution is concentrated so that only one drop quickly reveals the presence of alcohol and water in a gasoline sample. It can be used alone or with fuel-tester to determine the exact percent of ethanol. A 6ml bottle produces 180 samples. www.eaa.org/tester/

Number Tested 14 Quik-Check
Would you recomend this product to other members? Yes - 93%
Overall, how satisfied were you with this product
(0-10, 10 being highest)?


First Name Rating Comments
Brent 9 The fuel sampler was very easy to use. Some gas mixtures were almost the
same color as the water in the tester. The quick check solution made reading alcohol/water content very easy. The 3ml bottle seems pricey but it does check 90 tests or about 5 cents per use.
Jim 8 Much easier to use than the one that come with my STC, larger in size and the fuel
won’t dissolve the numbers and lettering. The solution makes seeing the levels much more distinctive.
Larry 9 A very simple product to use. The color coding makes it a very failure proof product. I would consider packaging it to include a color coding on the bottle or possibly packaging it in a case like a PH tester for a swimming pool. Overall I would recommend the product.
Edgar 9 Product easily detects water and alcohol. Takes the guess work out of detection and
it’s much easier to use than a marked jar or other calibrated vessel. Works well with kit in determining the alcohol percentage. My preference is to use with kit.
Larry 10 Does exactly what it says.  I tried it any way I could think of - each worked as stated.  Product only nixes with water and/or alcohol, will not with clean gas.  Happy to know what I’ve been buying is clean.
Ed 8 Product worked as advertised. Confirmed “no alcohol” in my mogas, both regular
and premium.
Gerald 8 The bottle of Qick-Check was tested with 87 grade E10 from Walmart and 87
non-ethanol from Flying J. The E10 turned a light turquois (slightly lighter than the Quick-Check indtructions picture, one drop in about two tablespoons of E10). The non-ethanol 87 grade showed no color change. The single drop just settled to the bottom of the container. No water was found in either sample. Both samples were also tested with the “Alcohol Fuel Test Kit”. Walmart fuel indicated about 8% ethanol, Flying J no ethanol. The Quick-Check is handy if no water is availible for conventional etanol testing, or water is suspected in the fuel. 
Gilbert 8 This product gives you a quick go/no-go check for ethanol adulterated MO-GAS.
All you need is a small sample in a clear glass container. Add one drop of “Quick-Check” and shake. If the sample contains no ethanol or water the blue drop of “Quick-Check” sinks to the bottom of the container and breaks up into very small droplets which over a few seconds recombines into one drop. The fuel stays clear. If the MO-GAS sample contains ethanol, after shaking the blue drop dissipates into the fuel turning it turquoise blue. If the fuel sample also has water contamination in it, it turns a milky blue. I tested all three scenarios and found it quite easy. This gives you a quick check. Other ethanol testers, that in addition give you the percentage of ethanol, you have to add water, shake and wait several minutes to see if the water line increased. Since no ethanol is allowed in aircraft fuel, this product tells you all you need to know instantly. One thing to look out for however, my ethanol sample that was water contaminated turned mostly clear with the blue dye in the bottom of the container after sitting for about 20 minutes. Shaking it again turn the sample cloudy blue again indicating water and ethanol contaminated fuel.
Jerry 10 The fluid really simplifies reading the alcohol percentage contained in fuel when used
in conjunction with an alcohol fuel test tube; the alcohol line is clearly delineated, making the process as easy as reading a sight gauge. When using the drops in a sample jar to test for water or alcohol presence the results are easy to see and unambiguous. Bright blue is bad, water contaminated fuel. Transparent turquoise blue indicates the presence of alcohol. If the Quik-Check solution settles in a thin line at the bottom of the sample jar , the fuel is both water and alcohol free. I liked the fact that there was no complicated chemistry involved, Just one drop in your sample will tell you what you need to know about your fuel quality. As a pilot of a Rotax 2-stroke powered RANS S5, I plan to make this product part of my fueling and pre-flight process.
James 9 The product worked great. The only critique I would give it is the instructions were more complicated than the actual test. It should read “fill tester with water to the “water line”. Then add fuel to the “fuel line”, add a drop of indicator solution, cork the tester, shake for 30 seconds and let it set for a few minutes. Read the alcohol percentage scale on the side of the tester where the clear liquid meets the blue. A simple and effective product that needs simple instructions. 
Mark 9 Easy to use. Very handy item to have for those of that have auto fuel STC’s, and vital to those users that have engines like the Rotax 912 and 914 that run better on Premium Auto fuel and burn Premium unleaded almost exclusively. For us, “its peace of mind in a bottle”. For the small price difference, the large bottle would be my choice. (PS: I own 4 aircraft, 3 use unleaded, 2 have auto fuel STC’s and use auto fuel as their primary fuel, one has a Rotax that was certified for auto fuel and burns it almost exclusively.)
Curtis  8 The solution worked as advertised. I liked the kit having the bottle. When I first
purchased the tester, I used a peanut butter battle along with the tester. The fuel pump nozzel is too big to place fuel in the tester, then place the nozzle in my vehicle’s filler hole while I tested the fuel. I placed the proper amount of water in the tester and then poured fuel from the peanut butter jar. Shook the tester and waited for the results. I would suggest that EAA add the bottle to their tester kit and remove the rubber stopper. I just place my hand over the top of the tester for shaking. Yes, the gas smell is on your hand but what pilot does not have the gas or oil smell on them until they can wash up?
Grant 4 As an aid to determining the presence of alcohol in a fuel sample the product was
acceptable, however the blue color was easily confused with the blue color of 100LL fuel. I would not want to use it as an additive in the tank for two reasons. 1) Not knowing the product, I would consider it to be fuel contamination. 2) The product is too expensive to add to the tank in the quantities recommended. I found the recomended drops per gallon to be to dilute to add to the tank with any hope of getting useful results. A little research indicated that using food coloring was about as effective in detecting the presence of alcohol in the fuel but only if the test product color did not match the color of the fuel prior to adding the test product. I experimented with making my own product sample out of food coloring but decided that it was not effective enough to be worth the effort. I may consider it again at a later date. Since the typical alcohol test requires adding water, it may as well be colored water. I hope to do more testing on my own in this area but would not purchase the product tested.
Dave 8 Excellent product, reasonably priced, and easy to use. I think the best feature of the QC Solution is that you can carry a small bottle of it with you in the airplane, and if you get in the situation where you need to use fuel from a gas can, you do not need to find water to add to the gas in order to test for E10. All you need is the QC Solution and your fuel tester.


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