2 Diesel Fuel or NATO F-54 - Middle distillate fuel used for automotive diesel and gas turbine engines.automotive diesel and gas turbine engines. – ASTM D975 – Density @15ºC: 0.820 to 0.840 kg/L – Flash Point: ≥ 52ºC (125.6ºF) – 12 to 21 carbon atoms per molecule. No. 1 Diesel Fuel or NATO F-44 - A special-ppp gurpose. Standard diesel fuel Standard diesel fuel (sometimes called diesel oil) comes in two grades: Diesel #1 (or 1-D) and Diesel #2 (or 2-D). The higher the cetane number, the more volatile the fuel. Most diesel vehicles use fuel with a rating of 40 to 55. 1-D S5000: 5000 ppm: No. 2-D S15: A general-purpose, middle distillate fuel for use in diesel engines, especially in applications with relatively high loads and uniform speeds, or in diesel engines not requiring fuels having higher volatility or other properties specified in Grade No. 2-D S500: 500 ppm: No. ASTM D975 covers seven grades of diesel fuel. Fuel grade 1-D is a special purpose volatile distillate fuel. Fuel grade 2-D is a general-purpose, middle distillate fuel for automotive diesel engines. Table 2 lists the detailed requirements of the No. Briggs Stratton Fuel Tank Part No 799863 Plastic Tank; Supersedes 694260, 695728, 695736, 698110; Shipping weight = 2.26 lbs.
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Diesel Fuel Grades
Historically, the quality of automotive fuels in the United States was specified by ASTM standards. Diesel fuels are covered by the ASTM D975 standard.
Since 2004, the D975 standard has covered seven grades of diesel, Table 1. Postbox 7 0 40. Heavier fuel oils Grade 5 and 6 (residual), which are used primarily for heating purposes, are described by ASTM D396.
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Fuel For Numbers 1 24
Grade | Description | Max Sulfur |
---|---|---|
No. 1-D S15 | A special-purpose, light middle distillate fuel for use in diesel engine applications with frequent and widely varying speeds and loads or when abnormally low operating temperatures are encountered. Higher volatility than that provided by No. 2-D fuels. | 15 ppm |
No. 1-D S500 | 500 ppm | |
No. 1-D S5000 | 5000 ppm | |
No. 2-D S15 | A general-purpose, middle distillate fuel for use in diesel engines, especially in applications with relatively high loads and uniform speeds, or in diesel engines not requiring fuels having higher volatility or other properties specified in Grade No. 1-D fuels. | 15 ppm |
No. 2-D S500 | 500 ppm | |
No. 2-D S5000 | 5000 ppm | |
No. 4-D | A heavy distillate fuel, or a blend of distillate and residual oil, for low- and medium-speed diesel engines in applications involving predominantly constant speed and load. |
The Sxxx designation was first adopted in the D975-04 edition of the standard to distinguish grades by sulfur content. The S5000 grades correspond to the “regular” sulfur grades, the previous No. 1-D and No. 2-D. S500 grades correspond to the previous “Low Sulfur” grades (D975-03). S15 grades are commonly referred to as “Ultra-Low Sulfur” grades or ULSD.
An ASTM standard (D2069) once existed for marine diesel fuels, but it has been withdrawn. It was technically equivalent to ISO 8217. While some marine diesel engines use No. 2 distillate, D2069 covered four kinds of marine distillate fuels: DMX, DMA, DMB, and DMC and residual fuels (see also ISO marine fuel specifications):
- DMX is a special light distillate intended mainly for use in emergency engines.
- DMA (also called marine gas oil, MGO) is a general purpose marine distillate that must be free from traces of residual fuel. DMX and DMA fuels are primarily used in Category 1 marine engines (< 5 liters per cylinder).
- DMB (marine diesel oil, MDO) is allowed to have traces of residual fuel, which can be high in sulfur. This contamination with residual fuel usually occurs in the distribution process, when using the same supply means (e.g., pipelines, supply vessels) that are used for residual fuel. DMB is produced when fuels such as DMA are brought on board the vessel in this manner. DMB is typically used for Category 2 (5-30 liters per cylinder) and Category 3 (≥ 30 liters per cylinder) engines.
- DMC is a grade that may contain residual fuel, and is often a residual fuel blend. It is similar to No. 4-D, and can be used in Category 2 and Category 3 marine diesel engines.
- Residual (non-distillate) fuels are designated by the prefix RM (e.g., RMA, RMB, etc.). These fuels are also identified by their nominal viscosity (e.g., RMA10, RMG35, etc.).
With the growing importance of alternative diesel fuels, standards have also been developed for biodiesel fuels and their blends.
Fuel For Numbers 1 20
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