SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE When to Change Oil Their use does not permit extension of recommended oil drain intervals. The length of time an engine may operate before an oil change depends upon the lubricant and fuel used, engine oil consumption, and the operating cycle. The Use of Supplemental Additives Lubricants meeting the Detroit Diesel specifications outlined in this publication already contain a balanced additive treatment. Supplemental additives are generally not necessary and can even be harmful. These additives may be marketed as either oil treatments or engine treatments and are discouraged from use in Detroit Diesel engines.
USED ENGINE OIL To avoid injury to skin from contact with the contaminants in used engine oil, wear protective gloves and apron. Engine damage resulting from the use of such materials is not covered by your Detroit Diesel Corporation warranty. Detroit Diesel will not provide statements beyond this publication relative to their use. The maximum interval at which the engine may operate before the oil and filters must be changed is listed in Table 15. Table 15 Maximum Oil Drain and Filter Change Interval (Fuel Sulfur 0.05 Weight Percent or Less) All information subject to change without notice.
77 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION Engine Application Drain Interval Highway Truck & Motor Coach 15,000 Miles (24,000 km) City Transit Coach# 6,000 Miles (9,600 km) Fire Truck or Crash/Rescue Vehicle 6,000 Miles (9,600 km), 300 Hours or 1 Year, whichever comes first