2 Cycle Outboard owners should read this

[joee12]

I quit using the 10% ethanol gas available here locally in my cars due to loss in MPG. I have been using Chevron 87 octane in my cars and boat lately. Read this article that is posted on the NMMA website, it is very interesting:
http://www.nmma.org/lib/docs/nmma/gr/environmental/marinem.pdf

 

[joee12]

Here is another spin on the topic from Mercury:

Mercury's Take on Ethanol

 

[eburr]

This past summer, I experienced WOT stalling using "regular gas" on Lake Erie and on Lake Cumberland, KY with my Evinrude Oceanpro 150 . A buddy of mine said that he had the same problem with his identical Johnson. Upon further analysis, my fuel/water seperator looked munged up so i replaced it, but if ethanol gas was the cause, I'll be sure to avoid it this year.

BTW: I am really looking forward to filling up for over $3.50 a gallon this summer. I may need to take up a less expensive sport.

 

[Steve S]

Originally Posted By: eburr
This past summer, I experienced WOT stalling using "regular gas" on Lake Erie and on Lake Cumberland, KY with my Evinrude Oceanpro 150 . A buddy of mine said that he had the same problem with his identical Johnson. Upon further analysis, my fuel/water seperator looked munged up so i replaced it, but if ethanol gas was the cause, I'll be sure to avoid it this year.

BTW: I am really looking forward to filling up for over $3.50 a gallon this summer. I may need to take up a less expensive sport.

I sold my last boat in 2003 when the price of gas got me thinking the $$$ would be better making me money instead of someone else..

 

[lars11]

hehe, stop whining. Gas is $2 per LITRE here. Filling up the 200 litre tank in the Regal makes my stomach ache...

 

[lars11]

Back to the subject:

About E10 and Ethanol generally: E5 is standard in all gas here causing no stalling.
For more Ethanol, you would have to increase fuel pressure or prolong the injection cycle for injection motors. For carburated engines you would have to put in a larger nozzle capable of increasing fuel flow by approximately 10% for say E20. Otherwise the engine will run lean and that will stall an engine no matter what fuel you use.
Now, running lean may also cause high combustion temps which may kill the engine especially when running at WOT and high RPM.
On the other hand, running the correct mix of ethanol fuel and air will reduce heat and facilitate higher power output.

The test is good but a bit "stupid". It's testing running engines with fuel it is not designed for. What about running the engines on diesel or without 2T oil? Not working well? Didn't think so...
Increase fuel flow for the ethanol mix you will use and there will be no problem except for cold starting with E85-E100.

You may test this on the lawn mower. Buy an extra nozzle, drill it to a slightly larger diameter and fill up with E85. Works like a charm and smells much better, more like a bar! Cheers!