petrol prices!, page-6

re: petrol prices!ethanol test Our local Safeway +Plus servo (Melb) has a sign on the door saying No Ethanol Added, just thought I'd mention it.
DIY test for Ethanol:-
Demonstrate or test for the amount of alcohol present in gasoline. This can be done using a "water extraction method" . A graduated glass cylinder, usually 100 milliliters (ml), is used for the test. Place 100 ml of the gasoline sample in the graduated cylinder. Add 10 ml of water into the cylinder, stopper the top, and shake thoroughly for one minute. Set aside for two minutes. If no alcohol is present, the 10 ml of water will settle to the bottom of the cylinder. If alcohol is present, the alcohol will drop to the bottom along with the water, increasing the bottom layer to greater than 10 ml. Subtract 10 from total bottom layer and remainder will be the percentage of alcohol in the gasoline.