2-stroke oil/ethanol

[HP]

OK...we all know that ethanol can destroy fuel tanks, rubber fuel lines, corrode aluminum, attract water like a spounge, and reap havoc on the inside of an outboard engine! What 2-stroke oils are we going to use that will mix with the 10-30% Ethanol fuels?? Or E-85 for that matter? Synthetic? Klotz Castor-Benol? What do we need be using? You just don't know what your putting in your expensive outboard these days! I would like to be ready for what ever percent Ethanol fuel I have to use! Come on guys, I know the research is out there...........

[Mark75H]

There are a few oils that won't mix with alcohol or alcohol blends. Hopefully, they are labeled as Klotz R-50 is, as not alcohol compatable. Other Klotz products, Techniplate and Techniplate/bean blends are alcohol compatable.

As far as I know, mineral based oils are alcohol compatable

[pyro]

...Such as Pennzoil 100% synthetic? (right?)

[HP]

I've been using Mercury Premium Plus. Does synthetic mix with the newer Ethanol fuels readily? Someone has this information!!! :confused:

[sms]

http://www.deh.gov.au/atmosphere/fuelquality/publications/testing-non-automotive/discussion.htm

interesting 2 stroke ethanol link

[sms]

bad link try this

http://www.nmma.org/lib/docs/nmma/gr/environmental/marinem.pdf

[HP]

SMS....thanks for the comeback! That is some very interesting reading. From what I read engine stalling off idle to demand WOT was the biggest problem, especially using E-20! So, can we conclude that most 2-stroke oils will mix with gasoline up to E-20? The engine manufacturers should have some info for Ethanol/oil tolerances........you would think:confused: People are not going to just give-up on the old 2-stroke engine. Even if we have to use an oil formulated just for alcohol........There is just to many out there!

[Mark75H]

I think the reason you are not hearing from the engine manufacturers is that their regular mineral oils and their synthetics are alcohol compatable.

There are only a few specialty synthetics that aren't ... if you want to be certain, you can do a test at home ... mix some of your oil with the suspect gas in a clear container and look at it. If the oil and it's dye stay mixed ... you are OK, if the oil and dye fall to the bottom after a few seconds or minutes ... don't use that oil with that gas.

[Dave S]

I tryed that at home test, I mixed a bit of this black diet stuff and some alky and tested it. Tasted good so I had some more.:p In the end I am glad I was at home, my drivvvin is noot soo ggood .;)

[HP]

I have done some bench testing as a matter of fact!:cool: All oils tested were at a 1:1 mix with 100% Ethanol.... Mercury Premium Plus settled out of suspension in about 20 minutes with the Ethanol ending up on the bottom. Not to good especially at the bottom of the fuel tank @ the pick-up tube:( Amsoil HP Synthetic Injector settled out of suspension in less than 5 minutes (and clumped)....with the oil ending up on the bottom!;) Probably good at least your not pulling in pure Ethanol. Last oil tested was....Power Mist Super 2 XPS Extreme Performance Series (par synthetic). Best results of the oils I have tested.:D :D :D Power Mist by far stayed in suspension longer (> 2 hours). But, did settle out of suspension on the bottom of the test tube. No clumps! These are just my testing results and in know way be considered final analysis....The testing continues!