100 octane low lead fuel ok?

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rvdriver
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100 octane low lead fuel ok?

Postby rvdriver » Mon Sep 11, 2017 10:28 am

I have access to aviation fuel.its 100 octane low lead. Can I safely use this in my 1958 Evinrude 35 Big Twin?

Thanks,

Steve
Lake Granbury Tx.

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20mercman
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Location: Kenosha Wisconsin

Re: 100 octane low lead fuel ok?

Postby 20mercman » Mon Sep 11, 2017 11:02 am

There is no good reason to use Leaded fuel in a two cycle. There are several folks who use the 100LL in their outboards with success, but as for the need, it really isn't there. The lead additive leads to heavy deposits in the exhaust system and also on the spark plugs. There is also an environmental component to not using leaded fuel in anything that does not need it. The best choice is to use a good Top Tier ethanol free fuel. You may only be able to access premium in the ethanol free formula. This the only option available in many areas, but it is definitely worth the effort having ethanol free in your two cycle motors. This is one of those topics like oil fuel ration that garners lots of opinions. YRMV (Your results may vary!)..


Steve

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Richard A. White
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Re: 100 octane low lead fuel ok?

Postby Richard A. White » Mon Sep 11, 2017 11:03 am

Why?


That motor should run just fine with pump gas...and 24:1 mix

Richard A. White
AOMCI Member
MOB Chapter President
http://www.richardsoutboardtools.com

outbdnut2
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Re: 100 octane low lead fuel ok?

Postby outbdnut2 » Mon Sep 11, 2017 1:50 pm

The 100 octane will not give better performance, and lead is not needed since there are no valves in a 2-stroke.
Dave

rudderless
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Re: 100 octane low lead fuel ok?

Postby rudderless » Mon Sep 11, 2017 2:17 pm

If its free..otherwise no reason to spend money on it.
..any port in a storm..

rvdriver
Posts: 13
Joined: Tue Feb 21, 2017 9:59 am

Re: 100 octane low lead fuel ok?

Postby rvdriver » Mon Sep 11, 2017 3:44 pm

Ok. I fly and have access to it. I wish there was an ethanol free fuel available in my area.

Thanks for the helpful comments.

amuller
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Re: 100 octane low lead fuel ok?

Postby amuller » Mon Sep 11, 2017 6:12 pm

As people have said, no advantage. Plus there are health and environmental consequences. 100LL can have up to 2 gm/gal TEL, which is really nasty stuff....

outbdnut2
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Re: 100 octane low lead fuel ok?

Postby outbdnut2 » Mon Sep 11, 2017 6:54 pm

Ethanol-free is an advantage!

The only reason we can buy ethanol-free in Minnesota is because the Minnesota Street Rod Association lobbied our legislature for it - and of course, they wanted and got it in premium for their cars, so that's what the ethanol-free stuff here is. We owe them!
Dave

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20mercman
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Location: Kenosha Wisconsin

Re: 100 octane low lead fuel ok?

Postby 20mercman » Mon Sep 11, 2017 8:15 pm

Check out this site to find the nearest ethanol free fuel.

https://www.pure-gas.org/

Steve

outbdnut2
Posts: 445
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Re: 100 octane low lead fuel ok?

Postby outbdnut2 » Mon Sep 11, 2017 9:25 pm

20mercman wrote:Check out this site to find the nearest ethanol free fuel.

https://www.pure-gas.org/

Steve



Interesting handy site! - but a phone call to the station first may save some time. I looked up a couple towns near me and found two stations on the list that discontinued ethanol-free a couple years ago.
Dave


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