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Both Rotella T4 15W-40 conventional and, Rotella T6 5W-40 and 15w-40 Synthetic both list the JASO MA/MA 2 standard; this information can be found on the bottle adjacent to the SAE/API rating stamp. JASO is an acronym that stands for Japanese Automotive Standards Organization. Note that the 10W-30 conventional oil does not list JASO-MA.
Fuel oil's viscosity strongly depends on the temperature, the higher is the temperature the lower is the viscosity. For optimal combustion the viscosity of the fuel should be in the range of 10–20 cSt. To maintain this value a combination of viscometer, PID controller and heater is used. Viscometer measures the actual viscosity of the fuel ...
Similarly the "Low Temperature Flow Test" (ASTM D4539 [1]) indicates the winter performance of diesel with improver additives. Note that both the CFPP and LTFT temperature is some degrees above the pour point temperature at which diesel fuel loses its fluid character and that pumps would stop operating.
Thus the issue of multigrade oils came into being, where with variable temperatures of, say, −10 °C during the cold nights and 20 °C during the days, a 5 weight oil would be good as the oil would be pumpable in a cold engine and as the engine came up to running temperature, and the day warmed up, the characteristics of a 30 weight oil would ...
So periodic oil and filter changes should still be done with synthetic oil, but some synthetic oil suppliers suggest that the intervals between oil changes can be longer, sometimes as long as 16,000–24,000 kilometres (9,900–14,900 mi) primarily due to reduced degradation by oxidation.
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Diesel-oil mud is typically mixed with up to 40% brine water. [52] Due to health, safety and environmental concerns, Diesel-oil mud is often replaced with vegetable, mineral, or synthetic food-grade oil-base drilling fluids, although diesel-oil mud is still in widespread use in certain regions. [53]
No. 1 fuel oil No. 1 distillate No. 1 diesel fuel Kerosene: Jet fuel: Distillate 9-16 No. 2 fuel oil No. 2 distillate No. 2 diesel fuel: Road diesel Rail diesel Marine gas oil Distillate 10-20 No. 3 fuel oil No. 3 distillate No. 3 diesel fuel Marine diesel oil Distillate No. 4 fuel oil No. 4 distillate No. 4 residual fuel oil Bunker A