TM 9-6115-666-132.3.3 Engine Oil.CAUTIONKHD warranty for the diesel engine will be void if oils listed in table 2-5 are not used.2.3.3.1 Oil Quality.As an internal combustion engine operates, some of the engine oil used to lubricate the cylinders is alsoburned. Temperature stress and fuel combustion products entering the oil also cause deterioration of theoil, especially its chemical additives, As a result all of the oil must periodically be replaced with fresh oil.The oil manufacturer provides the only guarantee of the quality grade to which an oil belongs. Oil qualityis partly defined by API classes: CC/SE or CD/SE 1) (paragraph 2.3.3.3).If the only quality information available is from MIL-specifications, proceed as follows:MIL-L-2104C, added at the same time as MIL-L-46125A, corresponds to API: CD/SE.SHPD oils 2, (paragraph 2.3.3.3) are approved individually by the engine manufacturer.Table 2-5 SHPD Oils Approved for Diesel Engine BF8L513.Oil CompanyBrand of OilAgipSigma TurboCaltexRPM DELO 450 OilChevronChevron Delo 450 Motor Oil MultigradeEssoDIESEL MOTOR OIL 500GulfGulf Turbo DieselValvolineValvoline Super HDS LDVeedolVeedol Turbostar2.3.3.2 Oil Viscosity.Because the viscosity of an oil changes with temperature, the ambient temperature at the operating loca-tion of the diesel engine is a critical factor in selecting the viscosity class (SAE class) (figure 2-9).If SAE 15W-40 is used, occasional temperatures slightly lower than the limit (e.g. down to 5 °F (-15° C))may impair cold-starting ability but will not cause engine damageExcessively viscous oil leads to difficulties in starting, which is why temperature during engine starting isthe essential factor in selecting a viscosity for winter operation. The use of multigrade oils eliminates theneed for temperature-related oil changes. Multigrade oils are subject to the same oil change intervals assingle-grade oils.2 - 4 1
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