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If you want to know the % of ethanol you can get a tester like gsxr1216 posted, or carefully measure and do the math. I just wanted to know if it had any ethanol so I used a glass olive jar. Going off memory I put an ounce of water and marked the jar with a sharpie. I then put in 5 or 6 ounces of gas and shook it up to mix the water with the fuel.

Come back an hour later and the ethanol will bond with the water and settle to the bottom. If the water is still at your sharpie mark then there is no ethanol in the fuel. If it is above your sharpie line the there is ethanol(or water, or both) in the fuel.

Unfortunately that is no longer the case. The EPA now requires most gas companies to put 5-10 % ethanol in their fuels. It is RENEWABLE.... what BS...

In Detroit the only stations with non ethanol are the Marinas.

I talked to Barrick who distributes Shell, BP and Valero and ALL the on the road gas has Ethanol now. Some Marinas have Ethanol free gas.

Wannabe

Buy a 200 m/l burette/graduated cylinder, fill with 100 m/l of gas sample, titrate with 5 m/l of water, shake with top sealed and it will phase seperate at ethanol level+the water you added: IE- your sample seperates at 20 m/l, accounting for 5m/l of water you added you also have 15 m/l or % of something OTHER than pure gasoline, 1 or 2 m/l might be additives but for the most part it will be ethanol. The tiny test tubes are okay but the sample is so small you can't really tell what the true percentage is.
Blackhawk-I tested the gas they shown in Evart and it HAD Ethanol so the list is BS somewhat, I will test the gas in Harrison this summer as my cabin is there, Smitty

The Pure Gas list is maintained my the users. If a station goes from non ethanol to ethanol fuel, the websited does not update it. Its left to the users to correct information. Before traveling any distance to buy non ethanol fuel from that list, I would call first. Half the time who ever you get on the phone doesnt know a thing about the fuel being sold. Lastly its wise to test the fuel to comfirm.
Its a good tool, but its not 100% accurate.

Testers are on ebay for ~$10

http://www.ebay.com/itm/ETHANOL-TEST...94abc2&vxp=mtr

They are hard to find now for sure, thank you for the link

Ethanol free?
 

Well here's a really big surprise....seems our native American friends on the local res have a different meaning to "ethanol free gasoline" I purchased an ethanol test kit that was approved by some aircraft certifying agency, tested a sample from a 5 gallon can I bought of the stuff before filling my tanks and low and behold...it's 10 percent ethanol!

what station?

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