OPERATION
5-42 / Operating the Engine
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5-24. Fluid Requirements
5-24.1 Diesel Fuel Requirements
Refer to the engine manufacturer’s operator’s manual for proper fuels, additives, and fueling procedures.
5-24.2 Engine Oil Requirements
Maintain engine oil at the proper level. Use engine dipstick to check oil level. Refer to the engine manufacturer’s
operator’s manual for additional information on engine oil types and procedures.
Never blend gasoline, gasohol, alcohol, or other volatile substances with diesel fuel. This practice
creates an extreme fire or explosive hazard that could cause property damage, personal injury, or
death.
After treatment-equipped engines require the use of specific oil and diesel fuel. The diesel fuel to be
used shall be Ultra Low Sulfur Diesel (ULSD) fuel containing 15 parts per million (PPM) sulfur content
or less. Make sure the pump station being used has the proper fuel type when filling your fuel tank. If
ultra-low-sulfur fuel is not used, the engine will not meet emissions regulations, and the After
Treatment Device (ATD) can be damaged. Refer to the engine manufacturer’s operation manual for
additional fuel specifications.
Filling the fuel tank with other liquids can result in premature failure of the engine and/or emission
components.
Detroit engines only: Engine oil must meet Detroit Fluids Specifications (DFS) DFS 93K223 (API CK-4)
oil. Detroit currently allows DFS 93K218 (API CJ-4) with appropriate drain intervals (refer to Detroit
Diesel Operators Manual). Using oil that is not API CJ-4 or above-compliant for extended periods of
time will damage components and require replacement of the ATD by an approved service facility.
Cummins engines only: Cummins Inc. recommends that after treatment-equipped engines use a high
quality 15W-40 multi viscosity heavy-duty engine oil that meets the requirements of Cummins
Engineering Standard CES20086/API CK-4/SL for maximum DPF maintenance intervals. Cummins
allows the use of CES20081/API CJ-4/SL oil with use of ULSD fuel. Reference Cummins Procedure 018-
003 regarding the use of CED20081 oil.
Ford engines only: Ford recommends the use of high quality 15W-40 motor oil conforming to
specification WSS-M2C171-E.
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