Ethanol question / concern

[NC-TFC]

Gas here now has 10% ethanol being added to the mix. I have heard that letting it sit more than 30-60 days can cause it to become corrosive. I usually keep my tanks full to help preventive moisture from collecting in the tanks. In the winter I always treat the fuel with preservative as we don't use the boat as often, but given the mild winters we do use it some. We have a 2006 Yamaha 4-stroke 90 on our C-Dory.

I was wondering what others on this board think of this issue and whether you recommend draining the tank in low usage times and if the gas aging issue is really a big concern or not?

Thanks

 

[Captains Cat]

Lots of discussion on this site and elsewhere. Do a search on "ethanol" at the top of the home page.

Charlie

 

[ccflyer]

There are several of additives to address this issue.
Star Brite is used by many folks -
http://www.derema.com/Bulletins/STartro ... Sep05.html
FWIW: I fill up with 100LL AvGas - more punch, no ethanol but more $$$$

 

[marvin4239]

The marina just north of you Boat House Marina in Surf City was selling non-ethanol fuel in September when I came through.

 

[hardee]

Can't say for sure if it will be a cure but I have switched to the blue "Stabil" which is the marine version, and specific to the ethanol issue. It was recommended by my Yamaha mechanics. We will be running our boat in the 30 - 60 day bracket, at least.

Harvey
SleepyC

 

[Hunkydory]

Can't say for sure if it will be a cure but I have switched to the blue "Stabil" which is the marine version, and specific to the ethanol issue. It was recommended by my Yamaha mechanics. We will be running our boat in the 30 - 60 day bracket, at least.

Harvey
SleepyC

Just bought the same stuff. Won't be able to add it untill May or June. Our non boating winters are a little longer here, so hope the red stable works for us again this winter. Noticed the local Flying J had a warning about possible 10% ethanol in the gas and it was there on the final fill up for winter.

Jay