ENGINE MAINTENANCE - Cooling System Maintenance 2 Cummins Inc. bases the oil drain specifications on duty cycle and oil contamination. This contamination occurs in all engines, at varying rates, regardless of the drain interval. Caterpillar EC-1 requirements. PACCAR recommends only using a 50/50 mixture of distilled water and ELC when cooling system service is required. A 50/50 mixture of ELC and distilled water will provide freeze protection down to –34°F (–37°C), which is adequate for most locations in North America. For extremely cold operating conditions, a 60/40 mixture (coolant/water ratio) can be used to provide freeze protection down to -62°F (-52°C).
critical to engine and cooling system component health and longevity. WARNING Maintaining the correct oil and filter change interval is a vital factor in preserving the integrity of an engine. Lubricating oil filters must be changed when the oil is changed. Coolant is toxic. DO NOT get the fluid in eyes. If contact occurs, flood eyes with large amounts of water for 15 mi- nutes. Avoid prolonged or repeated contact with skin. In case of contact, immediately wash skin with soap and water. DO NOT take internally. If swal- lowed, seek immediate medical atten- tion. DO NOT induce vomiting. Failure to comply may result in death, person- al injury, equipment or property dam- age.
Cooling System Maintenance Unless otherwise optioned, factory fill coolant is an ethylene glycol, nitrited organic acid technology (NOAT) extended life coolant (ELC) formulation at a 50/50 coolant-to-distilled water mixture. The factory fill exceeds ASTM D6210 and Caterpillar EC-1 requirements. Maintaining coolant chemistry and freeze protection is Information about concentration and condition of coolant, including filter.
The cooling system in your vehicle was factory filled with extended life coolant that meets or exceeds all ASTM D6210 and 48 Y53-1185-1E1 (04/16/18) Vehicles Average Speed Miles Kilometers Hours Months Typical Application(s) 25 to 30 mph 12,000 19,300 500 6 Linehaul truck, Fire truck/Emergency vehicle, School bus, Motor coach bus 30 to 40 mph 15,000 24,100 500 6 Higher than 40 mph 20,000 32,200 500 12 Recreational vehicle