mixed gas turning dark yellow

[atk82]

i ran boat yesterday gas looked fine in my filter now today it turned a dark yellow and i just filled it up with fresh gas and oil i mix my gas 50:1 any ideas of what its from

 

[atk82]

Re: mixed gas turning dark yellow

I unhooked lines at filter squirted gas out until good gas came out reconnected lines drained carb bowls pumped bulb redrained bowls until I had only good gas draining out it's kinda weird the gas in all the lines r dark yellow but gas in tank is fine I would think if there's something in the tank all the gas would be yellow

 

[Chris1956]

Re: mixed gas turning dark yellow

A couple of guesses for you. Water in the gas? Maybe the ethenol is disolving some of the fuel line innards?

 

[sschefer]

Re: mixed gas turning dark yellow

It's normal. Go get some gas straight out of the pump, pour it into a container and let it sit overnight. It'll turn dark yellow. You're running oxigentated (sp) fuel.

 

[atk82]

Re: mixed gas turning dark yellow

Thanks for all the help I got a different tank to make sure it wasn't anything to do with my original tank n also got a new line n bulb from tank to motor to check it also but just put that on tonite finally got time what is oxigentated fuel

 

[Brewman61]

Re: mixed gas turning dark yellow

Oxygenated fuel has a substance added to the base gasoline to boost it's oxygen content and burn more completely. Typically this is by adding 10% ethyl alcohol to the gas, also referred to as E10. Being Minnesota is in the corn belt, we've had 10% ethanol gas for a long time.