INDICATOR-COOL 2005237 - Caterpillar

Fluid Recommendations
These recommendations are subject to change without notice. Contact your local Cat dealer for the most up-to-date fluids recommendations.
Oil Recommendations
EMA____________________Engine Manufacturers Association
API____________________American Petroleum Institute
SAE____________________Society Of Automotive Engineers Inc.
DEO-ULS ____________________Diesel Engine Oil-Ultra Low SulfurCat DEO-ULS
Cat DEO-ULS is developed and tested to provide superior protection and life for your Caterpillar engines.
Better Detergents
Advanced Additive Package
Enhanced Dispersants
Improved Protection from Thermal breakdown and Oxidation BreakdownDue to significant variations in the quality and in the performance of commercially available oils, Caterpillar makes the following recommendations:
Cat DEO-ULS (SAE 10W-30)
Cat DEO-ULS (SAE 15W-40)CatDEO-ULS Multigrade oil is available in various viscosity grades that include SAE 10W-30 and SAE 15W-40. To choose the correct viscosity grade for the ambient temperature, see illustration 1. Multigrade oils provide the correct viscosity for a broad range of operating temperatures. Multigrade oils are also effective in maintaining low oil consumption and low levels of piston deposits.Consult your Cat dealer for part numbers and for available sizes of containers.Note: Cat DEO-ULS in SAE 15W-40 passes the following proprietary tests: sticking of the piston ring, oil control tests, wear tests, and soot tests. Proprietary tests help ensure that Caterpillar multigrade oil provides superior performance in Caterpillar Diesel Engines. In addition, Cat DEO-ULS Multigrade oil exceeds many of the performance requirements of other manufacturers of diesel engines. Therefore, this oil is an excellent choice for many mixed fleets. True high performance oil is produced with a combination of the following factors: industry standard tests, proprietary tests, field tests, and prior experience with similar formulations. The design and the development of Caterpillar lubricants that are both high performance and high quality are based on these factors.For more information on oil specification refer to Special Publication, SEBU6251, "Caterpillar Commercial Diesel Engine Fluids Recommendations".Lubricant Viscosity Recommendations
The proper SAE viscosity grade of oil is determined by the minimum ambient temperature during cold engine start-up, and the maximum ambient temperature during engine operation.Refer to illustration 1 (minimum temperature) to determine the required oil viscosity for starting a cold engine.Refer to illustration 1 (maximum temperature) to select the oil viscosity for engine operation at the highest ambient temperature that is anticipated.Note: Generally, use the highest oil viscosity that is available to meet the requirement for the temperature at start-up.
Illustration 1 g03332112
Supplemental heat is recommended for cold soaked starts below the minimum ambient temperature. Supplemental heat may be required for cold soaked starts that are above the minimum temperature that is stated, depending on the parasitic load and other factors. Cold soaked starts occur when the engine has not been operated for a period of time. The cold will allow the oil to become more viscous due to cooler ambient temperatures.
S O S Oil Analysis
Caterpillar has developed a tool for maintenance management that evaluates oil degradation and the tool also detects the early signs of wear on internal components. The Caterpillar tool for oil analysis is called S O S Oil Analysis and the tool is part of the S O S Services program. S O S Oil Analysis divides oil analysis