User Manual

SERIES 50 OPERATOR'S GUIDE
HOW-TO SECTION
This section covers Detroit Diesel's
recommendations on how to select
lubricating oil, fuel oil, and coolant
and includes basic engine maintenance
procedures which can be performed
by the operator.
NOTICE:
The manufacturer's warranty
applicable to Series 50 engines
provides in part that the provisions
of such w arranty shall not apply
to any engine unit that has been
subject to misuse, negligence or
accident. Accordingly, ma lfunctions
attributable to neglect or failure to
follow the manufacturer's fuel or
lubricating recommendations may
not be within the coverage of the
warranty.
How to Select L ubricating
Oil
The selection of the proper lubricating
oil is important to achieve the long
and trouble-free service which Detroit
Diesel engines are designed to
provide. The proper lubricating oil for
all Detroit Diesel engines is selected
basedonSAEviscositygradeand
API (American Petroleum Institute)
service designation. Only oils licensed
to display the A PI symbol should be
used. See Figure 22.
Figure 22 API Symbol
Lubricant R equirements
Lubricant requirem ents are different
for the EGR-equipped and non-EGR
engines.
EGR-Equipped Engines — API
CI-4 oils must be used in October
2002 and l ater– build Series 50
engines with cooled EGR (exhaust
gas recirculation) devices. API
Service Category CI-4 is intended for
use with cooled EGR engines meeting
2002 and later exhaust emission
regulations.
Non-EGR Engines — API CI-4 or
CH-4 oils are recommended for use in
all non-EGR engines.
Engines Built Prior to 1998 —
Lubricants meeting API Service
All information subject to change without notice. (Rev. 01/04) 83
DDC-SVC-MAN-0058 Copyright © 2004 DE TROIT DIESEL CORPORATION