MACH. SCREW 4B1326 - Caterpillar

Lubricant Recommendations
Due to the significant variations in the quality and in the performance of commercially available oils, Caterpillar makes the following recommendations. The following recommendations are in order of oil performance:Cat natural gas engine oils are the preferred oils for use in ALL Cat natural gas fueled engines that are covered by Special Publication, SEBU6400. Commercial alternative natural gas engine oils are, as a group, second choice oils.The proper SAE viscosity grade of oil is determined by the minimum ambient temperature during cold engine start-up. The proper SAE viscosity grade of oil is also determined by the maximum ambient temperature during engine operation. To determine the oil viscosity that is required for starting a cold soaked engine, refer to the minimum temperature in Table 2. To select the oil viscosity for operation at the highest anticipated ambient temperature, refer to the maximum temperature in the Table. Use the highest oil viscosity that is available to meet the required temperature during start-up.
Table 1
Cat Lubricants Viscosity Grade
Cat Natural Gas Engine Oil Ultra 40 NGEO Ultra 40 SAE 40
Cat Natural Gas Engine Oil Advanced 40 NGEO Advanced 40 SAE 40
Cat Natural Gas Engine Oil EL350(1) NGEO EL350 SAE 40
Cat Natural Gas Engine Oil NGEO 40 SAE 40
Hydraulic Oil Cat HYDO Advanced SAE 10W
SAE 20W
Cat Bio HYDO
Advanced (HEES) SAE 30
ISO 46 Multigrade
(1) Cat NGEO EL350 replaced Cat NGEO EL250
Table 2
Cat NGEO SAE 40 Viscosity Grade Properties
Characteristic ASTM Test Ultra 40 Advanced 40 Cat EL350 Cat NGEO
Flash Point 0 ° C (32 ° F) "D0092" 247 252 247 252
Pour Point 0 ° C (32 ° F) "D0097" −21 −30 −21 —15
Viscosity (cSt) at 100 °C (212 °F) "D0445" 13 13 13.5 13.2
Viscosity Index "D2270" 95 min 103 97 98
Weight (Percent) of Sulfated Ash "D0874" 0.54 0.5 0.54 0.52
Total Base Number "D2896" 6 6 6.2 5.6 For additional information about oils for gas engines, see Special Publication, SEBU6400, "Cat Gas Engine Lubricant, Fuel, and Coolant Recommendations".Gearbox Lubricant
Gearbox Lubricant
Use only Caterpillar approved oils in the gearbox. Use of unapproved oils may compromise the operation of the gearbox. For more information on gearbox oil, consult your Cat dealer.
Use only the oils that are specified.
Table 3
Gearbox Oil
Engine ISO Specification Oil
G3512H ISO VG220 Synthetic Compactor Oil: Cat part number 143-5466
G3516H ISO VG220 Cat NGEO Advanced 40
G3520H ISO VG220 Cat NGEO Advanced 40 S O S Services Oil Analysis
Caterpillar recommends the S O S oil analysis program to monitor the condition of the oil. The analysis can help determine the maintenance requirements for the engine. The S O S program is part of the preventive maintenance program. For further information about the S O S program, see this Special Publication, "S O S Services Oil Analysis" topic.Coolant Recommendations
During shipping and storage, the engine must be protected from damage that can be caused by freezing of the cooling system. Engines shipped to or stored in locations with freezing temperatures must contain antifreeze in the cooling system that will withstand the lowest ambient temperature. Frequently check the concentration of glycol in the