100LL aviation gas - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 8 (permalink) Old 07-30-2006, 05:28 AM Thread Starter
 
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100LL aviation gas

Here's the thing. I work at the airport so I can get it free, but 100LL has more lead in it than leaded automotive gas. If I mix it with 87 unleaded it will be like having leaded 94 octane gas for half the price of 87. So like $1.20 per gallon, like in the early 1990's. I don't think it would foul up my injectors if I used this combination like every other tank cause regular gas has injector cleaner additives in it but just in case anyone have any knowledge if it would be safe to use this? Like what side effects could I possibly experiance and what would the impact be? I'm thinkin the other thing it might foul up would be the oxygen sensor but I have no idea what problems that would cause. Any ideas?
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post #2 of 8 (permalink) Old 07-30-2006, 08:00 AM
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Your O2 sensor would be the first to go.

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post #3 of 8 (permalink) Old 07-30-2006, 08:23 AM
 
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Originally Posted by jeeps84
Your O2 sensor would be the first to go.
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post #4 of 8 (permalink) Old 07-30-2006, 09:19 AM
 
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Dont waste your time with it, just run regular NON leaded gas in the bike. we switched from leaded to unleaded fuel in autos and bikes for a good reason. simply dont need the stuff in those motors. I believe it was originally because the valve seats in motors built before the 50's and I think into the 50's needed the lead to lubricate the valves or something like that.
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post #5 of 8 (permalink) Old 07-30-2006, 01:46 PM
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You will find that most changes like lead to unleaded and now the big one is from 500PPM low sulfer diesel to 15PPMS Ultra low sulfer diesel is drivin by the EPA.




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post #6 of 8 (permalink) Old 07-30-2006, 03:09 PM
 
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Quote:
Originally Posted by ironmannFB3
Like what side effects could I possibly experiance and what would the impact be? I'm thinkin the other thing it might foul up would be the oxygen sensor but I have no idea what problems that would cause. Any ideas?
Definitely it will wreck the o2 sensor. That would likely cost you a new sensor as the bike would default to limp mode and run rich and way down on power till the sensor was replaced.The power will be down from unleaded automotive fuel because the mapping for the injectors must be changed to run the LL100. The injector cleaner is not intended to remove the lead deposits from the injectors. I tried using avgas years ago in racing cars and gokarts with unfortunate results, especially if in combination with ethanol. I don't know how it mixes with the new ethanol/gas mixes but it certainly wasn't mixable with our methanol gokart fuel NOT worth the hassles created.
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post #7 of 8 (permalink) Old 08-05-2006, 11:00 PM
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You don't say what king of bike you ride, but if you have injectors and an O2 sensor, there is a good possibility that your bike has a catalyst in the exhaust. Leaded gas will destroy the catalyst and create all kinds of problems. Definitely not worth the savings IMHO.

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post #8 of 8 (permalink) Old 08-06-2006, 12:26 PM
 
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Quote:
Originally Posted by King Bob
Dont waste your time with it, just run regular NON leaded gas in the bike. we switched from leaded to unleaded fuel in autos and bikes for a good reason. simply dont need the stuff in those motors. I believe it was originally because the valve seats in motors built before the 50's and I think into the 50's needed the lead to lubricate the valves or something like that.
I thought the lead was used for anti-knock for low octane fuel grades.

-a|ex
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