Ethanol Testing Kit?

[Bob Kontak]

Originally Posted by HarryD

However, not my method

Because I did not use a cylinder?

You were an engineer, right

Edit: I see what you are saying. It is not YOUR method. Got it. Yes cylinder (baby bottle) would show a much bigger delta.

[Hydrocket]

Originally Posted by SiberianDVM

They also sell those little aircraft fuel testers on Ebay.

This. Cheap and easy to use.

[HarryD]

Bob: just meant to say I stole it from the Internet. And yes, I are a enguneer.

Any tall skinny container which is clear and compatible with gasoline would work.