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Old 10-08-2012, 09:56 AM   #16
def
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Originally Posted by roger 04 rt View Post
I hate having anything rammed down my throat, and many of us feel that way about alcohol in gasoline. But gasoline can have its octane boosted. The three most recent boosters have been lead (poisonous), MTBE (carcinogenic) and ethanol (corrosive to older materials and intoxicating ;-) ).

My approach now is to accept it and boost fuel delivery to work better with it (4% more fuel needed plus whatever else you choose to add, 6% in my case). 10% more fuel takes about 20% higher fuel pressure and a shift in the O2 sensors lambda setting from 1 to 0.94. Ethanol works fine. Here's a racing article: Ethanol in Racing.
The WHO has determined that MTBE is NOT a carcinogen. It is still used as a fuel oxygenate in other parts of the world with success. Also, it is made from low cost natural gas, abundant here in the US.

MTBE was finding its way into ground water around leaking fuel tanks and imparting an undesirable taste and odor in groundwater. Instead of mandating the repair of the leaking tanks (a rather simple solution), the EPA mandated ethanol replace MTBE.....and, the rest is history.

BTW, your boxer is not powered by an airplane engine nor can it fly so, don't use AVGAS. Listen to Anorak....he knows.

def screwed with this post 10-08-2012 at 10:01 AM
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Old 10-08-2012, 01:16 PM   #17
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Originally Posted by Anorak View Post
No, my mistake. I didn't read the whole description of the fuel I linked. I wasn't aiming the snark at you.
All good I didn't take it as such.
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Old 10-08-2012, 09:36 PM   #18
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I fly airplanes too. You don't want avgas, at least not 100(green) 100LL (blue) or 80 (red). If you happened upon some 94UL, which is basically avgas without any lead in it, your bike would probably like that stuff. It is mostly alkylate, which is the best fraction from refining gasoline. Burns clean, has a high detonation resistance, has high thermal content.

Trouble is, it hardly exists. I think you can get it in a few places in Europe. But it is rare, rare, rare stuff. You'd have better luck looking for 200 year old cognac.
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Old 10-09-2012, 08:55 AM   #19
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Interesting info. Thanks Roger for making me see my issue...
I hate having anything rammed down my throat, and many of us feel that way about alcohol in gasoline. But gasoline can have its octane boosted. The three most recent boosters have been lead (poisonous), MTBE (carcinogenic) and ethanol (corrosive to older materials and intoxicating ;-) ).

My approach now is to accept it

I haven't accepted it! ( especially when they're pushing E15)
Concerning Greece & Spain, I'm not sure they would get what a bad deal it would be. Look what else they buy into...just saying...Oh, my apologies to all inmates in Greece & Spain
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Old 10-09-2012, 09:28 AM   #20
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Originally Posted by nuke View Post
You'd have better luck looking for 200 year old cognac.
BMW does not recommend two hundred year old cognac in the boxer engine.
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Old 10-09-2012, 09:37 AM   #21
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Quote:
Originally Posted by def View Post
BMW does not recommend two hundred year old cognac in the boxer engine.
But apparently schnapps is fine as long as you add a little gasoline for cold starts ...
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Old 10-09-2012, 09:55 AM   #22
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Another very effective octane booster is MMT (methylcyclopentadienyl manganese tricarbonyl)



used in Bardhal Instead O lead Gold, which I think you can still get and works excellent.

I used to have a old Buick that liked octane. It was OK around town, but if you hit the highway it would rattle bad at high speeds. I kept this in the trunk, one bottle in even a full tank of 26 gallons stopped all the pinging. Good stuff.


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Old 10-09-2012, 12:35 PM   #23
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Thoughts on this?
Bardahl E10 Fuel Improver

http://www.bardahlclassicoils.nl/Fue...6ed571f.0.html
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