This is the one I bought. http://www.fuel-testers.com/order.html No, I don’t work for them. {:0)
It is fairly easy to use. I don’t know how accurate it is. it did show no Ethanol in gas I bought at my local country store. They did advertise their gas to be free of alcohol. I tested a sample from a major station that had the 10% or less sign. That test indicated 5%. That last gas smelled a lot different also.
It may also be a national mandate. Check out the content of any Premium 91 octane fuel in your area, if you are looking for Ethanol free fuel. I have to run it in my high performance 400 hp. 26’ aft-cabin cruiser,(Imagine the cost of replacing that engine!) also my snowblower/lawn tractor and all my small engines. I have had excellent results and no problems. (My toys are way too costly to risk and I refuse to pay for the damage that running Ethanol fuels would cause.)
With the cost of repair to a chain saw at $100 or more.
The cost to service a fishing motor at $85 per hour.
$105 per hour to repair the generator on a motor home.
The lawn mower repair shop was a bargain at $65 per hour, but they went bankrupt.
To test gasoline before I buy it for all of my small gas motors makes sense to me.
Here on FR there was a story about an automobile dealership that was having fuel related problems that they could not solve. They bought a ethanol test kit and found samples of E10 gasoline that contained up to 21% ethanol.
With a $0.45 per gallon subsidy per gallon of ethanol it is my guess that some where along the supply system there are some unscrupulous people that will turn E10 into E12, E14, E17, E21 or who knows what. Then you and I are stuck with the repair bills.
Again thanks for the information.