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Av Gas 100LL in small engines and other things #5111843
05/21/19 10:11 PM
05/21/19 10:11 PM
Joined: Jan 2017
Posts: 16
SW Michigan
earthmover1980 Offline OP
earthmover1980  Offline OP

Joined: Jan 2017
Posts: 16
SW Michigan
I have been using 100LL av Gas in my small engines. It is ethanol free, lasts along time, and smells like race fuel. It has been working well for my non-catalyst applications. What are your opinions?

Re: Av Gas 100LL in small engines and other things [Re: earthmover1980] #5111851
05/21/19 10:20 PM
05/21/19 10:20 PM
Joined: Dec 2003
Posts: 1,004
New England, USA
wings&wheels Online content
wings&wheels  Online Content

Joined: Dec 2003
Posts: 1,004
New England, USA
As long as you don't use synthetic oil, you should be fine....actually, probably be fine even w/ synthetic for limited use in small engines... Plus it lasts much longer than auto fuel.


I've been burning my sump fuel in tractors, etc. as long as I've been flying.


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'74 BMW 2002
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'99 Porsche 996 (Wife's)
'01 Porsche Boxster S (mostly Wife's...)
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Re: Av Gas 100LL in small engines and other things [Re: earthmover1980] #5111876
05/21/19 11:10 PM
05/21/19 11:10 PM
Joined: Jan 2018
Posts: 1,196
San Antonio, TX
das_peikko Offline
das_peikko  Offline

Joined: Jan 2018
Posts: 1,196
San Antonio, TX
Do they sell it to the general public? You don't have to have an airplane to buy it?

Re: Av Gas 100LL in small engines and other things [Re: das_peikko] #5111912
05/22/19 01:03 AM
05/22/19 01:03 AM
Joined: Jun 2009
Posts: 3,881
Chicago, IL
tomcat27 Offline
tomcat27  Offline

Joined: Jun 2009
Posts: 3,881
Chicago, IL
Originally Posted by das_peikko
Do they sell it to the general public? You don't have to have an airplane to buy it?

Nope they sell to anyone. Some are self serve and pay with credit card


2019 Cherokee, 2018 Jetta, 2014 Sentra, 2001 Camry, 1995 Escort, 1970 Cougar, 2013 XT250, 2010 Vstar, 2014 CTX1300
Re: Av Gas 100LL in small engines and other things [Re: earthmover1980] #5111987
05/22/19 06:20 AM
05/22/19 06:20 AM
Joined: Feb 2003
Posts: 8,563
Jupiter, Florida
Cujet Offline
Cujet  Offline

Joined: Feb 2003
Posts: 8,563
Jupiter, Florida
It works wonderfully. It does have a tendency to dry out the fuel shut off valve seals on some OPE. Other than that, it's stunningly better than pump gas.


People who count on their fingers should maintain a discreet silence.
Re: Av Gas 100LL in small engines and other things [Re: das_peikko] #5112011
05/22/19 06:57 AM
05/22/19 06:57 AM
Joined: Jun 2011
Posts: 1,508
Texas
wag123 Offline
wag123  Offline

Joined: Jun 2011
Posts: 1,508
Texas
Originally Posted by das_peikko
Do they sell it to the general public? You don't have to have an airplane to buy it?
It depends on the airport, some do and some don't. It isn't illegal for them to sell it to the public and it isn't illegal for the public to use it, so I don't understand why some airports won't sell it to the public. Maybe it is because the airport owners don't want the public out on the tarmac.
AvGas doesn't deteriorate like automotive pump gas so it doesn't need stabilizer. Small engines, boat engines, and vehicles that don't have cats love the stuff!

Re: Av Gas 100LL in small engines and other things [Re: wag123] #5112129
05/22/19 08:50 AM
05/22/19 08:50 AM
Joined: Aug 2011
Posts: 659
GoVols
kstanf150 Offline
kstanf150  Offline

Joined: Aug 2011
Posts: 659
GoVols
I’ve never purchased av gas before. What’s the cost per gallon ? And is it leaded or unleaded fuel ?

Last edited by kstanf150; 05/22/19 08:51 AM.
Re: Av Gas 100LL in small engines and other things [Re: earthmover1980] #5112167
05/22/19 09:24 AM
05/22/19 09:24 AM
Joined: Jan 2013
Posts: 3,009
Texas
WyrTwister Offline
WyrTwister  Offline

Joined: Jan 2013
Posts: 3,009
Texas
What I was wondering , too ?


Wyr
God bless
Re: Av Gas 100LL in small engines and other things [Re: kstanf150] #5112170
05/22/19 09:26 AM
05/22/19 09:26 AM
Joined: Dec 2005
Posts: 11,729
Upper Midwest
kschachn Offline
kschachn  Offline

Joined: Dec 2005
Posts: 11,729
Upper Midwest
Originally Posted by kstanf150
I’ve never purchased av gas before. What’s the cost per gallon ? And is it leaded or unleaded fuel ?

100LL means 100 octane rating, Low Lead. So yes it is leaded.

And the price is whatever the local FBO can charge for it, which might be quite a bit depending on the location. A lot of them post their prices online.


1994 BMW 530i, 242K
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Re: Av Gas 100LL in small engines and other things [Re: wings&wheels] #5112199
05/22/19 09:42 AM
05/22/19 09:42 AM
Joined: May 2012
Posts: 2,987
The land of USA-made Subies!
SubieRubyRoo Offline
SubieRubyRoo  Offline

Joined: May 2012
Posts: 2,987
The land of USA-made Subies!
Originally Posted by wings&wheels
As long as you don't use synthetic oil, you should be fine....actually, probably be fine even w/ synthetic for limited use in small engines...


Please tell, exactly why would he be fine as long as he doesn't use synthetic oil? How exactly is synthetic oil fine for every other ICE but not for OPE/small engines??

Re: Av Gas 100LL in small engines and other things [Re: earthmover1980] #5112206
05/22/19 09:46 AM
05/22/19 09:46 AM
Joined: Jun 2011
Posts: 784
Florida
chainblu Offline
chainblu  Offline

Joined: Jun 2011
Posts: 784
Florida
Some FBOs are more cooperative than others. Some will want to verify what the fuel is going in. If they have any inking that it is going in a vehicle driven on public roads, they are legally supposed to stop the sale because road taxes have not been collected. The fines to the FBO are pretty hefty and they could possibly lose their license.

This is what I was told some 30 years ago when I inquired about buying AvGas.

Re: Av Gas 100LL in small engines and other things [Re: earthmover1980] #5112266
05/22/19 10:47 AM
05/22/19 10:47 AM
Joined: May 2010
Posts: 1,334
Ocala, Florida
racin4ds Offline
racin4ds  Offline

Joined: May 2010
Posts: 1,334
Ocala, Florida
Excellent fuel for motorcycles and race karts, we've been using it for years. My son's 2 stroke MX bikes loved the stuff.


Just say NO to thin oils and M1!
05 F350 Powerstroke
05 Hyundai Tucson
08 Legacy GT
Re: Av Gas 100LL in small engines and other things [Re: chainblu] #5112285
05/22/19 11:13 AM
05/22/19 11:13 AM
Joined: Jan 2018
Posts: 1,196
San Antonio, TX
das_peikko Offline
das_peikko  Offline

Joined: Jan 2018
Posts: 1,196
San Antonio, TX
Originally Posted by chainblu
Some FBOs are more cooperative than others. Some will want to verify what the fuel is going in. If they have any inking that it is going in a vehicle driven on public roads, they are legally supposed to stop the sale because road taxes have not been collected. The fines to the FBO are pretty hefty and they could possibly lose their license.

This is what I was told some 30 years ago when I inquired about buying AvGas.


If you show up with a 5 gallon gas can and tell them it's for your weedeater, will they have a tendency to believe you?

Re: Av Gas 100LL in small engines and other things [Re: das_peikko] #5112380
05/22/19 01:04 PM
05/22/19 01:04 PM
Joined: Jun 2011
Posts: 1,508
Texas
wag123 Offline
wag123  Offline

Joined: Jun 2011
Posts: 1,508
Texas
Originally Posted by das_peikko
Originally Posted by chainblu
Some FBOs are more cooperative than others. Some will want to verify what the fuel is going in. If they have any inking that it is going in a vehicle driven on public roads, they are legally supposed to stop the sale because road taxes have not been collected. The fines to the FBO are pretty hefty and they could possibly lose their license.
This is what I was told some 30 years ago when I inquired about buying AvGas.

If you show up with a 5 gallon gas can and tell them it's for your weedeater, will they have a tendency to believe you?
5 gal for a weedeater or any other low compression OPE engine will be hard to believe, tell them it is for a dirt bike or old outboard boat engine. Chainblu is correct, never tell them that it is for a car or any other road going vehicle. Ditto 4-wheelers (newer ones have cats on them).

Re: Av Gas 100LL in small engines and other things [Re: wag123] #5112404
05/22/19 01:28 PM
05/22/19 01:28 PM
Joined: Aug 2011
Posts: 659
GoVols
kstanf150 Offline
kstanf150  Offline

Joined: Aug 2011
Posts: 659
GoVols
For those like me thats curious about cost check out

www.100ll.com

Last edited by kstanf150; 05/22/19 01:29 PM.
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