E-85 gas???

noobtard · #1 (**permalink**) 07-03-2009, 02:11 AM

so, supposedly this guy -> YouTube - my 49cc motor on mountain bike settup! RUNS ON E85 n MYSTERY OIL!!( ride and lookie) UNIQUE!

is running E85 gas in his 2 stroke so he claims.. also more power...
Thoughts?

**Bikeguy Joe** · #2 (**permalink**) 07-03-2009, 06:46 AM

E85 will work when properly jetted.
I don't know about using MMO as 2 stroke oil.

geoffmaree · #3 (**permalink**) 07-03-2009, 07:16 AM

yes well how will that motor last??

geoffmaree · #4 (**permalink**) 07-03-2009, 07:17 AM

i use top grade synthetic oil & no problems so far.

freewheeling frank · #5 (**permalink**) 07-03-2009, 11:17 AM

ok im buying some e 85 and am gonna watch real close ill let ya know, frank

Venice Motor Bikes · #6 (**permalink**) 07-03-2009, 11:29 AM

One of the guys that I work with, just blew up the 2-stroke engine in his bass boat......
The guy who's rebuilding the engine for him said it blew because he used gas from Washington state that has a higher ethanol content than California gas!

He said it has something to do with the fact that ethanol burns at a different temp than gasoline, & ethanol also holds water in it...

Anyone else here know anything about it?

As far as the Mystery oil goes... I wouldn't do it!
I use "standard issue" Valvoline 2-stroke oil. I've never had a problem with it.

MB-Monkey · #7 (**permalink**) 07-03-2009, 12:47 PM

Wow that motor really didn't sound all that healthy. another thing to think about is the amout of Lead in the gas. Regular gas, before "unleaded" which is a misnomer because it too has lead content, had a higher lead content in it and that helped lubricate the head and other metallic parts. Then with the reduced lead content of modern fuels heads would fail from lack of lubrication. So again with the addition of "new" fuel technology, as many of know our grandfathers used to run corn whiskey in their cars as a boost so new is a relative term, again it will reduce the lead content in gasoline with mechanical failures sure to follow. The newer flex fuel cars and trucks can handle the removal of the "Octane" for the fuel but older cars before the late 90's it may spelled a sure fire death. So as far as using it in a "Made in China" motor i may think twice before jumping on the band wagon.... but what do monkeys know...... <splat>

matt167 · #8 (**permalink**) 07-03-2009, 01:39 PM

if you run a higher ethanol content than 10%, you'll need to rejet ( richer ) the carb accordingly.. so if the boat was running 20-30%, and wasn't tuned for it.. that was the problem.... as far as lead in todays gasoline.. not as much as a trace of lead anymore.. lead did not provide lubrication. it provided a 'cushion' for the valve seats ( this is b4 hardened valve seats ).. and even with the new gas in the old engines, it's not a problem.. they will overtime get valve ressession, but there never run hard enough for it to happen quick.. most of the engine work I do, is on engines from pre 1970, because I deal mostly in classic cars

Cabinfever1977 · #9 (**permalink**) 07-03-2009, 01:58 PM

just get some regualar gas at the gas station. these arnt no racing boat motors.

matt167 · #10 (**permalink**) 07-03-2009, 02:01 PM

Quote:

Originally Posted by Cabinfever1977

just get some regualar gas at the gas station. these arnt no racing boat motors.

in some parts of the country E-85 is a lot cheaper than regular gas.. even if you knock off the 20% for fuel economy loss, figuring $1.90 per gallon which I belive around what it is midwest.. these engines would likely run cheaper.. E-85 also burns cooler so in proper tune- less wear