Don Scott with the National Biodiesel Board needed a new transmission for his Cummins Diesel powered 1991 Dodge W250 pickup truck. The truck would be displayed at the Cummins 100th Anniversary event to promote sustainable biodiesel fuel. This particular truck is known as the truck that changed the world. It's the first documented truck to run on biodiesel in the US, and the first to run on soy-based biodisel in the world. The research and field trials done at the University of Missouri paved the way for the biodisel industry that now supports 64,000 US jobs and has reduced 143 million tons of CO2 emissions. Pretty impressive truck with a great TREMEC TR-4050 5-Speed in it now! 

Call us to get a TREMEC TR-4050 5-Speed for your 4WD.

"Biodiesel History Targets Future Growth" - Sustainability Blog, National Biodiesel Board

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I changed the oil and installed a new battery. #Cummins started on the #firstCrank. Parked since 2002! Impressive. This #diesel fuel is not quite old enough to see an R-rated movie, but it would be old enough to drive on its own. Officially, we recommend using your #Biodiesel within a year. We used to advise a shelf life of six months, but quality testing has shown some Biodiesel can stay in spec for up to 3 years. Compare that to gasoline which lasts about 3 months before going out of spec. The #CumminsRepowerWagon is taking the #1stBiodieselTruck to @BandelierMustang to get a new transmission and detailing. All the other #CumminsRepower projects will have to wait a while longer. It’s amazing how garage stalls never stay empty for long. #theMoreThingsChangeTheMoreTheyStayTheSame

A post shared by Don Scott (@donscottwheels) on May 10, 2019 at 4:36pm PDT

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#1stBiodieselTruck getting ready for a set of new @bfgoodrichtires. Thanks to @quickdrawbrand @tremecpurveyor and @silversporttransmissions , this #firstgencummins, which was the first truck in the world to run on @mo_soybeans #biodiesel, is slated to be the first #DodgeRam #Cummins to run the new #Tremec #TR4050 #5speed. Like so many #12valvecummins, the #diesel engine outlived the OEM #Getrag #transmission. @biodiesel4ever @dieselpowermag @kssoybean

A post shared by Don Scott (@donscottwheels) on May 24, 2019 at 2:10pm PDT

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Goodbye twisted bumper. Goodbye #Getrag. Hello @diamondEyePerformance 4” #exhaust. Still prepping for the first @quickdrawbrand 5.9 #Cummins bellhousing for the #Tremec #TR4050 from @silversporttransmissions and @tremecpurveyor. We have one week to get this #1stBiodieselTruck ready for the @cummins centennial and the #TurboDieselRegister Mid-Range #Engine Plant tour. @biodiesel4ever @mo_soybeans

A post shared by Don Scott (@donscottwheels) on May 31, 2019 at 2:34pm PDT

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Original #WindowSticker for the #1stBiodieselTruck. This almost didn’t happen. In #1991 the @mo_soybeans directors voted 4 to 3 (with 6 abstentions) to proceed with the initial #Biodiesel research. They narrowly approved funding for research, but emphatically denied the purchase of a #pickup truck. The #UniversityOfMissouri #CollegeOfAgriculture found a way to purchase a #workTruck for the #FoundationSeed company that could be used by the #Ag #Engineers as a #research platform while simultaneously being used as a #farmTruck. These first #experiments with #soyBased #biofuel we’re so successful that the #University purchased a second research #Dodge and the #Missouri #soybean assoc. purchased a #Powerstroke or their own with a year to further advance and promote #soyDiesel. This #D250 #sweptline #DodgeRam #firstGen #Cummins was the first.

A post shared by Don Scott (@donscottwheels) on Jun 4, 2019 at 6:21am PDT

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#FirstDrive. This #1991 #Cummins was the first truck in the US to run on #Biodiesel and the #WorldsFirst to run on #soybeanOil. That research was concluded in 1996, and this truck was used by the @universityofmissouri as a #workTruck until the transmission went out in 2002. For more than 16 years, it sat motionless until this very day. There were only a handful of biodiesel producers operating in 2002. This #truckThatStartedItAll has never pulled up to a retail pump where anyone can buy a #biomassbasedDiesel blend. @biodiesel4ever

A post shared by Don Scott (@donscottwheels) on Jun 4, 2019 at 7:47pm PDT

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This is the first truck to run on #biodiesel in the US and the first in the world to run on #soy Biodiesel. This truck was used for research between #1991 and 1996. It hasn’t been driven since 2002. Yesterday was the first time it ever filled up with #B20 at a retail pump. The commercial industry did not exist the last time this truck filled up. Today #biomassbasedDiesel can be purchased at thousands of retail locations. This would not have happened without @mo_soybeans @natbiodiesel @biodiesel4ever and many more.

A post shared by Don Scott (@donscottwheels) on Jun 9, 2019 at 5:54pm PDT

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The #1stBiodieselTruck joins other historic #diesels at @Cummins. This gold, #FirstGenCummins was the first of many test mules to pioneer the use of #Biodiesel. The 2nd Biodiesel Ram returned to #Cummins in the #1990s to have its #12valve dissected and inspected to evaluate compatibility and durability with #renewableFuel. Of course, it passed with flying colors and the #dieselIndustry continues to innovate to make #diesel cleaner and better for the economy. Thank you @DieselSteveW! @cumminsrepowerofficial @indybiofuels @mo_soybeans @biodiesel4ever @natbiodiesel @minnesoyta @ @dieseltechforum

A post shared by Don Scott (@donscottwheels) on Jun 11, 2019 at 8:56am PDT

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Thanks @DieselSteveW and @DeveDanders for helping the #1stBiodieselTruck join other pioneering #FirstGenCummins #trucks for the #TurboDieselRegister and @Cummins centennial. @Biodiesel4ever @mo_soybeans @indybiofuels

A post shared by Don Scott (@donscottwheels) on Jun 12, 2019 at 1:18pm PDT

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I was introduced to this #firstGenCummins when it was the only-gen #Cummins, and I was a 1991 freshman in #AgriculturalEngineering at the #UniversityOfMissouri. My #careerPath was #EnvironmentalProtection, not originally #farmEconomy. After 2 #gulfWars, record #fuelPrices, record #crudeOil #Imports and record #environmental damage from #fossilFuels, I came back to #Biodiesel in 2006. I’m proud that this #12valveCummins is still #goingStrong, and that #biomassBasedDiesel will be key for the remainder of this century as we celebrate #Cummins100 #centennial. Thanks for making this possible: @mo_soybeans @biodiesel4ever @natbiodiesel @kssoybean @nebraskasoybeans @cummins @dieselstevew @indybiofuels

A post shared by Don Scott (@donscottwheels) on Jun 15, 2019 at 10:48am PDT

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@cummins knows how to throw a party. #Cummins100 has a #CenturyOfProgress to celebrate. The innovation of a determined individual and those who believed in him built a legacy that employs 60,000 people worldwide. Coincidentally, nearly as many as employed by the US #biodiesel industry. The #1stBiodieselTruck has been around less than 30 years, but this #renewableFuel is ready for the #next100years, storing #solarEnergy for your #fuel tank. Thanks to @mo_soybeans @biodiesel4ever @devedanders @cumminsrepowerofficial and @dieselstevew

A post shared by Don Scott (@donscottwheels) on Jun 15, 2019 at 6:41pm PDT

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No #trailerQueen, but have to get two #CumminsRepower s back to @natbiodiesel with one #driver. #ItsTheEasiestWayThatIveFound. The #1stBiodieselTruck and #CumminsCommando both crank out the same #horsepower. When this #nonIntercooled #firstGenCummins was put on the #dyno, it made 3% more #power on #B100 #biodiesel and slightly more than its intercooled #12vcummins research counterpart. Both are running #B20 today. @gouhaul @biodiesel4ever @mo_soybeans @cumminsrepowerofficial

A post shared by Don Scott (@donscottwheels) on Jun 16, 2019 at 9:00am PDT

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To re-gear or not to #regear, that is the question. The #1stBiodieselTruck coasted into @BandelierMustang with leaking rear #wheelCylinder s. Should we fix them, or abandon the 4.10 #gears and swap in this 3.54 #Dana70 out of another #firstGenCummins? The original 4.10 also has #positrack. So, maybe we should keep it? Should we put a new #ringAndPinion in the #positrac, or should we just stay in the #slowLane?

A post shared by Don Scott (@donscottwheels) on Jul 18, 2019 at 11:38am PDT

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At Camp #Biodiesel, I asked Kenlon Johannes to #autograph the #1stBiodieselTruck. Kenlon was Executive Director of @mo_soybeans when the first Biodiesel research was undertaken at the #UniveristyOfMissouri. He now serves in the same role at @kssoybean and has been a consistent #leader and #innovator in the #soybean world. I’m driving #Goldie today, hauling an #A518 from a dead #firstGenCummins for @binderboneyard. This ‘91 #D250 is the smoothest running #12valveCummins and the nicest #oldTruck I’ve ever driven. Must be the Biodiesel.

A post shared by Don Scott (@donscottwheels) on Aug 14, 2019 at 9:45am PDT