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Am I Using the Right Fuel in My Tractor?

Jan. 13 2021 Tractor Diesel Fuel By Team Tractor and Equipment

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We want to share diesel fuel specifications and requirements for your Yanmar tractor.

Many people have not heard this information before, so we wanted to make sure you have it.  This way your engine runs great and your tractor keeps operating for a long time.

Diesel Fuel Specifications

The diesel fuel you use should comply with specific specifications.

The following table lists several worldwide specifications for diesel fuels.


Additional Technical Fuel Requirements

There are many additional details and technical requirements around diesel fuel. 

Here are a few:

  • Never mix used engine oil, kerosene, or residual fuels with diesel fuel.
  • Water and sediment in the fuel should not exceed 0.05% by volume.
  • Always keep the fuel tank and fuel-handling equipment clean.
  • The fuel cetane number should be equal to 45 or higher.
  • The sulfur content must not exceed 0.5% by volume.  (Less than 0.05% is preferred, especially in the U.S.A. and Canada --- ultra low sulfur fuel must be used.)
  • Poor quality fuel can cause engine damage and/or reduce engine performance.
  • Fuel additives are not recommended.  Some fuel additives may cause poor engine performance.  Consult your YANMAR representative for more information.
  • Ash content should not exceed 0.01% by volume.
  • Metal content of Na, Mg, Si, and Al should be equal to or lower than 1 mass ppm.  (Test analysis method JPl-5S-44-95.)
  • Lubricity: Wear mark of WS1.4 should be Max. 0.018 in. (460 µm) at HFRR test.
  • Carbon residue content not to exceed 0.35% by volume. Less than 0.1% is preferred.
  • Total aromatics content should not exceed 35% by volume. Less than 30% is preferred.
  • PAH (Polycyclic Aromatic Hydrocarbons) content should be below 10% by volume.
  • Bio-Diesel fuels. Consult your dealer and owner’s manual.

If you need any further help, or have any questions about diesel fuel, tractors, or anything else, please contact your dealer, local mechanic, or call us at 602-734-9944.  Please ask about our current new and used tractor supply.


Team Tractor and Equipment - #1 Tractor Dealer in Arizona. We sell and service most major brands of tractors including Yanmar, Kubota, John Deere, TYM, Mahindra, Kioti, Case, New Holland, Massey Ferguson, Ford, Deutz, Case IH, Farmall, International Harvester, Branson Tractors, LS, Shibura, Claas Tractor, McCormick Tractors, Valtra, Solis, YTO, Montana, and Nortrac.