# What are they using to fuel tractor pulls?

**URL:** <https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001>\
**Category:** General Discussion\
**Created:** [February 6, 2020, 6:36pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001 "2020-02-06T18:36:55Z")\
**Posts on this page:** 18\
**Page:** 1

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [February 6, 2020, 6:36pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/1 "2020-02-06T18:36:56Z")

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Pure alcohol replaced gasoline in the corn belt I guess

> **[Louisville gets ready for Championship Tractor Pull](https://www.farmprogress.com/tractors/louisville-gets-ready-championship-tractor-pull)**
>
> The massive indoor competition changes classes, and announcers, for the 2020 event

Will alcohol fueled automobiles be on the market in the midwest soon?

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [February 6, 2020, 6:40pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/2 "2020-02-06T18:40:33Z")

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Alcohol is just one class, most aren’t.

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [February 6, 2020, 6:43pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/3 "2020-02-06T18:43:22Z")

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But I didn’t see any mention of ‘gasoline’ in the story @texases.

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [February 6, 2020, 6:51pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/4 "2020-02-06T18:51:14Z")

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Look at the schedule. Those that are alcohol (or diesel) say so:

 ![image](https://global.discourse-cdn.com/cartalk/original/3X/f/7/f79801c090e95ee8349c33b62ff8452a0ee9cf23.jpeg)

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**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [February 6, 2020, 8:39pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/5 "2020-02-06T20:39:31Z")

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My first thought was Nitro-Methane …engines love that stuff. The more you cram in…the more power you make…till your engine comes apart. Its all in good fun, expensive, good fun.

But as @texases clearly points out… this stuff is written down somewhere.

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**Author:** ![eddo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/eddo/32/2594_2.png) [@eddo](https://community.cartalk.com/u/eddo)\
**Post date:** [February 6, 2020, 8:59pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/6 "2020-02-06T20:59:24Z")

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> [@Honda\_Blackbird](#):
>
> My first thought was Nitro-Methane …engines love that stuff.

my first thought was the tears of tree huggers…

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**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [February 6, 2020, 9:00pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/7 "2020-02-06T21:00:00Z")

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Those too… but I hear they are low on Octane sadly

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**Author:** ![auto-owner](https://avatars.discourse-cdn.com/v4/letter/a/50afbb/32.png) [@auto-owner](https://community.cartalk.com/u/auto-owner)\
**Post date:** [February 7, 2020, 2:49am UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/8 "2020-02-07T02:49:54Z")

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I have heard that nitromethane was tried in tractor/truck pulls decades ago, but was soon abandoned after too many engine explosions. Tractor/truck pulls are essentially drag races pulling tremendous weight, and if you watch any nitro drags you’ll see they have enough problems with explosions as it is.

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [February 7, 2020, 4:16am UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/9 "2020-02-07T04:16:55Z")

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> [@Rod\_Knox](#):
>
> Will alcohol fueled automobiles be on the market in the Midwest soon?

Uncle Sam has been encouraging the manufacture of flex fuel vehicles since the 1990s, millions sold.

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**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\
**Post date:** [February 7, 2020, 5:06am UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/10 "2020-02-07T05:06:12Z")

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That is pretty much what E85 is anyway. Lousy fuel mileage and range.

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**Author:** ![CapriRacer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/capriracer/32/22_2.png) [@CapriRacer](https://community.cartalk.com/u/CapriRacer)\
**Post date:** [February 7, 2020, 1:54pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/11 "2020-02-07T13:54:25Z")

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I think tractor pulls are using methanol fueled engines, where E15/E85 is ethanol.

And they use alcohol because you can make more power for a given engine size than with gasoline - albeit with more fuel consumed.

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**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [February 7, 2020, 3:58pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/12 "2020-02-07T15:58:08Z")

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True… Something tells me the Tractor Pull owner drivers aren’t too concerned with fuel economy regardless of fuel type.

After all…they are getting what…about 3 gallons per FOOT maybe? LOL

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**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\
**Post date:** [February 7, 2020, 4:06pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/13 "2020-02-07T16:06:00Z")

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> [@Nevada\_545](#):
>
> Uncle Sam has been encouraging the manufacture of flex fuel vehicles since the 1990s, millions sold.

And thousands and thousands never use E-85. Just based on my observation there’s a very large percentage of full-size pickups that are Flex fuel sold here in New Hampshire. There’s not ONE E-85 gas station in New Hampshire. There’s ONE in Massachusetts.

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**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [February 7, 2020, 4:16pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/14 "2020-02-07T16:16:14Z")

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I need to brush up on what preparations besides the obvious fuel container, lines etc are involved in making a vehicle “flex fuel” capable all the way up to 85% ethanol.

What do the valves and guides think of this witchcraft? Moisture in tank or ambient air? Drunks trying to put a straw in your fuel tank? Fuel economy Those sorts of things?

Time for a little research n learn me something…

Crap now I really got into the deep end… the former article I read just breezed thru suggesting only fuel container and injector modifications… knew it sounded too simple… now Im reading this monster… I was only looking for what if anything the valvetrain needed for E85… still havent found that info…maybe no info needed?

> **[ft\_12\_agarwal.pdf](https://www.energy.gov/sites/prod/files/2014/03/f12/ft_12_agarwal.pdf)**
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> 1599.61 KB

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**Author:** ![PvtPublic](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/pvtpublic/32/13089_2.png) [@PvtPublic](https://community.cartalk.com/u/PvtPublic)\
**Post date:** [February 8, 2020, 11:43am UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/15 "2020-02-08T11:43:53Z")

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> [@Honda\_Blackbird](#):
>
> but I hear they are low on Octane sadly

Unfortunately that sadness creates even more tears that combine with previous tears further lowering the octane. Which creates more sadness, more tears. It’s a terrible downward spiral.

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**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [February 8, 2020, 12:47pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/16 "2020-02-08T12:47:10Z")

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You are correct, and I believe there is a mathematical equation for that phenomenon @PvtPublic.

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**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\
**Post date:** [February 8, 2020, 2:48pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/17 "2020-02-08T14:48:11Z")

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> [@oldtimer-11](#):
>
> That is pretty much what E85 is anyway. Lousy fuel mileage and range.

I think the biggest problem is that alcohol burns more efficiently at higher compression ratios than gasoline. The USA has a gasoline based fleet, and we can’t really take advantage of burning alcohol efficiently.

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [February 8, 2020, 4:10pm UTC](https://community.cartalk.com/t/what-are-they-using-to-fuel-tractor-pulls/158001/18 "2020-02-08T16:10:20Z")

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Is vapor injection ignored by engine designers due to concerns that owners will fail to keep the tanks filled with water?

Vapor injection seems to offer a better outcome than e-15 ethanol fuel and actually requires methanol to make it operational

> **[Pratt-Whitney-R-2800.pdf](https://www.aviatorsdatabase.com/wp-content/uploads/2013/07/Pratt-Whitney-R-2800.pdf)**
>
> 381.41 KB
