| Coolant | 50/50 mixture water/Caterpillar Extended Life Coolant | | below 48°C | | Radiator cooling packages designed for up to 48.9° C (120° F) ambient; coolant sump refill capacities vary by oil sump/pan (18 L to 106 L service refill with new oil filter change) |
| Coolant | Cat DEAC | | | | Diesel; 3,000 Service Hours or Three Years; annual S·O·SSM Level 2 coolant sampling and analysis |
| Coolant | Cat DEAC (Diesel Engine Antifreeze/Coolant) | Acceptable coolant; commercial heavy-duty antifreeze/coolant must meet ASTM D4985 or ASTM D6210 | | | Conventional heavy-duty coolant/antifreeze. Caterpillar recommends a 1:1 mixture of water and glycol. Do not use a commercial coolant/antifreeze that only meets the ASTM D3306 specification. Do not use Cat SCA at the initial fill when Cat DEAC is used. |
| Coolant | Cat ELC | | | | Diesel; 12,000 Service Hours or Six Years; add Cat ELC Extender at 6,000 service hours or one half of service life; annual S·O·SSM Level 2 coolant sampling and analysis |
| Coolant | Cat ELC (Extended Life Coolant) | Caterpillar EC-1 specification (preferred); also meets ASTM D4985, ASTM D6210, and ASTM D3306 | | | Service life of 12000 service hours or six years. Premixed ELC provides freeze protection to -37 C (-34 F); ELC Concentrate can be used to lower the freezing point to -52 C (-62 F). An Extender is the only additional maintenance needed at 6000 service hours or one half of the ELC service life. Cat ELC cooling systems can withstand contamination to a maximum of ten percent of conventional heavy-duty coolant/antifreeze and/or SCA. |
| Coolant | Cat NGEC | | | | Natural Gas; 16,000 Service Hours or Three Years; use interval that occurs first |
| Coolant | Cat SCA (Supplemental Coolant Additive) with water | | | | SCA concentration in a cooling system that uses SCA and water should be six to eight percent by volume; do not exceed the eight percent maximum concentration. If Cat SCA is not used, the commercial SCA must provide a minimum of 2400 mg/L or 2400 ppm (140 grains/US gal) of nitrites in the final coolant mixture when used with water, and a minimum of 1400 mg/L or 1400 ppm (82 grains/US gal) with heavy-duty coolant/antifreeze. |
| Coolant | Glycol (ethylene glycol / propylene glycol) | Propylene glycol coolant must meet ASTM D6210-04 | | | Ethylene glycol: 50 percent = freeze protection -37 C (-34 F), boil protection 106 C (223 F); 60 percent = -52 C (-62 F), 111 C (232 F). Propylene glycol: 50 percent = -32 C (-26 F), 106 C (223 F). Do not use propylene glycol in concentrations that exceed 50 percent; do not use ethylene glycol in concentrations that exceed 60 percent. All Caterpillar diesel engines equipped with air-to-air aftercooling (ATAAC) require a minimum of 30 percent glycol. |
| Coolant | SCAC cooling / jacket water | | | | Generator temperature rise based on a 40 degree C ambient per NEMA MG1-32. |
| Engine oil | Cat DEO (Diesel Engine Oil) 10W-30 and 15W-40 | Cat ECF-1 (exceeds); API CI-4, API CI-4 PLUS, API CH-4, API CG-4, API CF (Cat DEO SAE 15W-40) | | | Caterpillar oils are used to fill diesel engines at the factory. Non-Caterpillar commercial oils are second choice oils. Do not use API CF-4 oils in Caterpillar diesel engines. Do not use single grade API CF oils or multigrade API CF oils in 3500 Series, C175 Series and smaller DI diesel engines. |
| Engine oil | Cat NGEO | | | | Natural Gas |
| Engine oil | Commercial oils (DI engines) | Cat ECF-1 required; API CG-4 multigrade acceptable; API CH-4, API CI-4 and API CI-4 PLUS acceptable only if the requirements of Cat ECF-1 are met; do not use API CF-4 oils | | | Minimum TBN must be 10 times the fuel sulfur level (ASTM D2896); minimum TBN of the oil is 5 regardless of a low fuel sulfur level. API CG-4 oils: do not exceed the standard oil drain interval. |
| Engine oil | Commercial oils (PC engines) | Cat ECF-1; API CH-4, API CI-4, API CI-4 PLUS (if Cat ECF-1 requirements met); API CG-4 multigrade; API CF-4 multigrade; API CF | | | Minimum TBN of the oil that is used in PC engines must be 20 times the fuel sulfur level; minimum TBN of new oil is five. Change the oil when the TBN deteriorates to 50 percent of the original TBN. |
| Engine oil | Lubricating oil | | | 675.0 L | Sump refill with filter; integral lube oil cooler, gear type lube oil pump |
| Engine oil | Re-refined base stock oils | | | | Acceptable if they meet the performance requirements specified by Caterpillar; filtering is inadequate for producing high quality re-refined base stock oils. |
| Engine oil | Synthetic base stock oils | | | | Acceptable if they meet the performance requirements specified for the engine compartment. Caterpillar does not recommend the automatic extension of oil drain intervals for any type of oil. |
| Engine oil | Cat Arctic DEO SYN SAE 0W-30 | | -40°C to 30°C | | Engine Crankcase; Industrial Engines |
| Engine oil | SAE 0W-20 | | -40°C to 10°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | SAE 0W-30 | | -40°C to 30°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | SAE 0W-40 | | -40°C to 40°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | Cat DEO SYN SAE 5W-40 | | -30°C to 50°C | | Engine Crankcase; Industrial Engines |
| Engine oil | SAE 5W-30 | | -30°C to 30°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | SAE 5W-40 | | -30°C to 50°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | Cat DEO SAE 10W-30 | | -18°C to 40°C | | Engine Crankcase; Industrial Engines |
| Engine oil | SAE 10W-30 | | -18°C to 40°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines); SAE 10W-30 is the preferred viscosity grade for the 3116, 3126, C7, C-9 and C9 diesel engines between -18 C (0 F) and 40 C (104 F) |
| Engine oil | SAE 10W-40 | | -18°C to 50°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | Cat DEO SAE 15W-40 | | -9°C to 50°C | | Engine Crankcase; Industrial Engines |
| Engine oil | SAE 15W-40 | | -9°C to 50°C | | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) |
| Engine oil | Cat SAEO SAE 30 | API CF-4 category | 0°C to 40°C | | Table 2 - 3116 and 3126 Marine Engines with mechanical unit injection; factory fill has API CF-4 category and viscosity grade of SAE 30 |
| Engine oil | SAE 30 | | 0°C to 40°C | | Table 3 Lubricant Viscosities for Ambient Temperatures - PC engines only |