2-Pack Ethanol Test Kit - Spill-Free Wide Mouth E85 Tester with Bold Markings, Compact Design for Hundreds of Tests, Accurate Results in 5 Minutes

They work and nice to know about your gas

Works great, got some gas I thought may have been higher in ethanol and after testing it was actually about 7.5%

Bought this Ethanol test kit for my car that runs E40 blend. Chose this tester over others due to the fill hole being able to fit the entire pump nozzle without spilling fuel all over the place. The accuracy was pretty spot on but I personally had to add an additional .5g of E to meet my ethanol goal. The durability of the tester is ok but noticed over time that the cap would not seal correctly and when shaking to mix the water and ethanol, it would spray out the lid. Other than that no complaints.

Great product, on time

Simple yet effective

This is the best! No more guessing and hoping for the best. Using this tested to check the ethanol percentage is a game changer for my build. I have a F80 M3 that loves the corn. I would buy again

This worked as designed and verified that the Non ethanol gas I purchased was indeed ethanol free. Now I can breath easy and not worry about damaging my lawn equipment!

dont leave this item on the dash of your car. I took them out of the package and set then on my pickup dash for about an hour and they distorted to the point where they are of NO value.