Witham Oil & Paint

a.	Minimum acceptable 'Standard' quality with reduced drain intervals shown. CG-4 may also be used with reduced drain intervals. CH-4, EO CUM 20071 or 20076 required for 'Premium' classification with extended drain intervals.
b.	Centinel equipped Signature 600/ISX, ISM engines require use of Qualube Endurol 15W40 / Qualube Eurofleet 15W40 / Qualube Endurasyn SS 10W-40
c.	Engine oil viscosity recommendations: -30°C to 0°C, 0W-30; -25°C to 20°C, 5W-30; -20°C to 20°C, 10W-30; -12°C to above 40°C, 15W-40. Monogrades: -20°C to -6°C, 10W; -10°C to 20°C, 20W; 4°C to 32°C, 30; above 10°C, 40. The use of monograde engine oils reduces oil change interval

1.	Synthetic oils, API category III, are recommended for ambient temperatures consistently below -25°C. Synthetic engine oils of 0W-30 viscosity may be used where ambient temperature does not exceed 0°C. Mineral oils are preferred, synthetic or part synthetic oils must not be used for break-in
2.	Friction modified oils must not be used unless evidence of satisfactory performance in Cummins engines can be substantiated. Special break-in oils should not be used