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Gas question on old tractor #7627164
07/15/22 10:12 AM
07/15/22 10:12 AM
Joined: Dec 2015
Posts: 2,544
NNY
0
080808 Offline OP
trapper
080808  Offline OP
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Joined: Dec 2015
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NNY
Have 49 Ford 8 N thatís been sitting for about 8 yrs. Going to drain tank, line, carb. New gas 87 octane or highest (90) here or does it make a difference?

Re: Gas question on old tractor [Re: 080808] #7627172
07/15/22 10:19 AM
07/15/22 10:19 AM
Joined: Oct 2009
Posts: 4,605
east central WI
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k snow Offline
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k snow  Offline
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east central WI
Octane shouldn't matter as much as ethanol content. Get no ethanol if possible, which around here is the high octane.

Re: Gas question on old tractor [Re: k snow] #7627193
07/15/22 10:31 AM
07/15/22 10:31 AM
Joined: Nov 2017
Posts: 4,198
West Central MN
20scout Online content
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20scout  Online Content
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Posts: 4,198
West Central MN
Originally Posted by k snow
Octane shouldn't matter as much as ethanol content. Get no ethanol if possible, which around here is the high octane.

This


Common sense is a not a vegetable that does well in everyone's garden.
Re: Gas question on old tractor [Re: 080808] #7627200
07/15/22 10:33 AM
07/15/22 10:33 AM
Joined: Jan 2018
Posts: 3,409
MN
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Donnersurvivor Offline
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MN
Some stations have 91 premium no alcohol, that is what I run in all my small engines.

Re: Gas question on old tractor [Re: 080808] #7627223
07/15/22 10:56 AM
07/15/22 10:56 AM
Joined: Dec 2015
Posts: 2,544
NNY
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080808 Offline OP
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080808  Offline OP
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NNY
Thanks. I believe up here I can get 90 no alcohol.

Re: Gas question on old tractor [Re: 080808] #7627253
07/15/22 11:39 AM
07/15/22 11:39 AM
Joined: Jan 2018
Posts: 3,409
MN
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Donnersurvivor Offline
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MN
Originally Posted by 080808
Thanks. I believe up here I can get 90 no alcohol.

Get it from a well used station, not a old marina etc. Sometimes it gets old if they don't sell much of. It.

Re: Gas question on old tractor [Re: 080808] #7627257
07/15/22 11:42 AM
07/15/22 11:42 AM
Joined: Sep 2013
Posts: 14,212
Green County Wisconsin
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GREENCOUNTYPETE Offline
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Green County Wisconsin
ethanol free here is 91 octane

you want gas not alcohol

if they only have 1 hose for all gas types put a few gallons in your truck before you fill the cans for the tractor


Last edited by GREENCOUNTYPETE; 07/15/22 11:43 AM.

America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Gas question on old tractor [Re: 080808] #7627269
07/15/22 11:49 AM
07/15/22 11:49 AM
Joined: Nov 2017
Posts: 9,112
Maine, Aroostook
Posco Offline
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Posco  Offline
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Maine, Aroostook
I have a 1950 Farmall Cub and all I've ever ran in it is 87 octane. Never had an issue.

Re: Gas question on old tractor [Re: Posco] #7627280
07/15/22 11:56 AM
07/15/22 11:56 AM
Joined: Sep 2013
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Green County Wisconsin
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GREENCOUNTYPETE Offline
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Green County Wisconsin
Originally Posted by Posco
I have a 1950 Farmall Cub and all I've ever ran in it is 87 octane. Never had an issue.


the issue isn't running 87 the issue is when you don't run often enough if you go months 87 separates makes a mess a lot more than non ethanol gas

guys that feed their chain saws on pro tree crews 87 day after day for years aren't the issue, alcohol and 2 strokes aren't great but oil is very good these days , the issue is joe home owner buys a new saw gasses it up cuts for 2 tanks worth and puts the saw away for 6 months or more.

if you have to fill your tractor monthly then 87 probably isn't an issue


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Gas question on old tractor [Re: 080808] #7627289
07/15/22 12:05 PM
07/15/22 12:05 PM
Joined: Feb 2010
Posts: 16,145
pa
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hippie Offline
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As some said, octane is of no worry to you, get gas without corn squeezings in it is most important.

Re: Gas question on old tractor [Re: 080808] #7627293
07/15/22 12:07 PM
07/15/22 12:07 PM
Joined: Nov 2017
Posts: 9,112
Maine, Aroostook
Posco Offline
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Maine, Aroostook
Beside corrosion in the tank, there's not much on a vintage tractor susceptible to ethanol issues. A short fuel line off the bottom of the tank that runs to the carburetor and a rubber O-ring on the carb drain. That's it. Condensation in the tank is the bigger issue. The tank on my tractor is seventy years with no signs of failure.

Re: Gas question on old tractor [Re: GREENCOUNTYPETE] #7627294
07/15/22 12:07 PM
07/15/22 12:07 PM
Joined: Mar 2013
Posts: 917
Western Wisconsin
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TraderVic Offline
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Western Wisconsin
Originally Posted by GREENCOUNTYPETE
ethanol free here is 91 octane

you want gas not alcohol

if they only have 1 hose for all gas types put a few gallons in your truck before you fill the cans for the tractor


Are you sure there's ethanol in it ?
I've never seen 91 octane containing ethanol here in WI.

Re: Gas question on old tractor [Re: 080808] #7627307
07/15/22 12:26 PM
07/15/22 12:26 PM
Joined: Dec 2006
Posts: 3,480
Pa
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Wright Brothers Offline
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Pa
I run lead additive in my oldies fuel every other tank or more.





Re: Gas question on old tractor [Re: 080808] #7627341
07/15/22 01:05 PM
07/15/22 01:05 PM
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Posts: 9,185
Asheville, NC
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charles Offline
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Asheville, NC
Bet that engine will run fine on lower octane. Agree with suggestions for ethanol free. Hope you do not have to rebuild your fuel systems, but 8 year old gas would have ethanol and you might need to clean and/or replace hoses and gaskets and carb stuff. Sounds like a fun project.

Re: Gas question on old tractor [Re: 080808] #7627362
07/15/22 01:37 PM
07/15/22 01:37 PM
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Posts: 19,144
St. Louis Co, Mo
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BigBob Offline
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Buy a jug of Stabil, and use it every time you put gas in.


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Re: Gas question on old tractor [Re: 080808] #7627364
07/15/22 01:40 PM
07/15/22 01:40 PM
Joined: Mar 2014
Posts: 1,706
SE Iowa USA
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AKAjust Online content
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SE Iowa USA
The reason ethanol worries folks is that it damages carburators because of the plastic.
NO plastic in a 49 8N

My 45 Farmall H was made to run on gasoline, alcohol, and kerosene.
just

Last edited by AKAjust; 07/15/22 01:43 PM.
Re: Gas question on old tractor [Re: TraderVic] #7627391
07/15/22 02:15 PM
07/15/22 02:15 PM
Joined: Sep 2013
Posts: 14,212
Green County Wisconsin
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GREENCOUNTYPETE Offline
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Green County Wisconsin
Originally Posted by TraderVic
Originally Posted by GREENCOUNTYPETE
ethanol free here is 91 octane

you want gas not alcohol

if they only have 1 hose for all gas types put a few gallons in your truck before you fill the cans for the tractor


Are you sure there's ethanol in it ?
I've never seen 91 octane containing ethanol here in WI.

that is what I said , ethanol free gas in WI is 91 octane

the 87, 88 , 93 all have ethanol

the 91 stuff marked ethanol free doesn't or shouldn't

having a wife that worked at a co-op with a gas station , truckers drop the wrong gas in tanks some times if your ever wondering why the 87 and 91 are nearly the same price for some reason , expect someone dumped 87 in the 91 and they need to sell it quick and get a new load of 91.


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Gas question on old tractor [Re: 080808] #7627406
07/15/22 02:48 PM
07/15/22 02:48 PM
Joined: Dec 2006
Posts: 201
S.W. Ontario. Canada
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Don Offline
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S.W. Ontario. Canada
Make sure you drain the sediment bowl under the tank. It could be full of water.


"Common sense, is uncommon, anymore"
Re: Gas question on old tractor [Re: 080808] #7627438
07/15/22 03:55 PM
07/15/22 03:55 PM
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Posts: 1,310
ny
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gcs Offline
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It'll run fine on 87 with ethanol, just use the shut off valve at the bottom of the tank and run it dry.

Re: Gas question on old tractor [Re: 080808] #7627683
07/15/22 09:44 PM
07/15/22 09:44 PM
Joined: Jan 2014
Posts: 6,373
Virginia
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52Carl Offline
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Virginia
Since the ole gal has been sitting for 8 years, it would be a great idea to make sure that the inside of the tank is clean. Gummy deposits will be dissolved by the ethanol in the gas and will migrate into the carburetor then into the engine where it can gum up the valve guides causing a bad miss or worse.
You won't need higher octane than 87. If you used higher octane, you would need to adjust the timing to compensate for it.

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