Europa-List: Re: New engine runs a little rough when weather is cold.

[Area-51 <goldsteinindustrial@gmail.com>]

That is a good bit of info in that link.

Another useful test if running pump gas, or even avgas, is to check for ethanol
content of the fuel before putting the fuel into the aircraft; its a simple and
quick process and can prevent carbi icing scenarios. 

Basically take a glass container put 100ml of water in, draw a line at the water
level, put 100ml of the fuel in the container and give it a stir; if the water
level increases then thats the % of ethanol in the fuel.


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http://forums.matronics.com/viewtopic.php?p=510190#510190