User Manual
SERIES 50 OPERATOR'S GUIDE
The Use of Supplemental
Additives
Lubricants meeting the Detroit
Diesel specifications outl ined in this
publication already contain a balanced
additive treatment. Supplemental
additives are generally n ot 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. Engine
damage resulting from the use of
such materials is not covered by
your Detroit Diesel Corporation
warranty. Detr oit Diesel will not
provide statements beyond this
publication relative to their use.
When to Change Oil
USED ENGINE OIL
To avoid injury to skin from
contact with the contaminants in
used engine oil, wear protective
gloves and apron.
The length of time an engine may
operate before an oil change depends
upon the lubricant and fu el used,
engine oil consumption, and the
operating cycle. The maxim um
interval at which the engine may
operate before the oil and filters mu st
be changed is listed in Table 20.
Engine Application Drain Interval
Highway Truck & Motor Coach 15,000 Miles (24,000 km)
City Transit C oach#
6,000 Miles (9,600 km), 300 Hours or
3 Months, whichever comes first
City Transit Coach Model 6047MK1E 3,000 Miles (4,800 km)
Construction, Industrial or A griculture
250 Hours or 1 Year, whichever comes
first
Stationary Generator, Prime Power or
Continuous
300 Hours or 3 Months, whichever
comes first
Stationary Generator, Standby
150 Hours or 1 Year, whichever comes
first
# All Series 50 transit coach engines, except model 6047MK1E.
Table 20 M aximum Oil Drain and Filter Change Interval (Fuel Sulfur
0.05 Weight Percent or Less)
All information subject to change without notice. (Rev. 01/04) 85
DDC-SVC-MAN-0058 Copyright © 2004 DE TROIT DIESEL CORPORATION