User Manual
SERIES 50 OPERATOR'S GUIDE
Prohibited Additives
The following fuel additives are not
allowed and MUST NOT b e mixed
with diesel fuel.
Used Lubricating Oil — Detroit
Diesel specifically prohibits the
use of used lubricating oil in diesel
fuel. Used lubricating oil contains
combustion acids and p articulate
materials which can severely erode
fuel injector com ponents, resulting in
loss of power and increased exhaust
emissions. In addition, the use of
drained lubricating oil will increase
maintenance requirements due to filter
plugging and combustion deposits.
Gasoline — The addition of
gasoline to diesel fuel will create a
serious fire hazard. The presence
of gasoline in diesel fuel will reduce
fuel cetane number and increase
combustion temperatures.
FIRE
To avoid increased risk of a fuel
fire, do not mix gasoline and
diesel fuel.
Tanks which contain such mixtures
should be drained and cleaned as soon
as possible.
Detroit Diesel Corporation will not be
respon sible for any detrimental effects
it determines resulted fro m adding
drained lubricating oil or gasoline to
the diesel fuel.
How to Replace the Fuel
Filters
Filters are an integral part of the
fuel system. Proper filter selection
and maintenance are important to
satisfactory engine operation and
service l ife. Filters should be used to
maintain a clean system, not to clean
up a contaminated system. Refer
to the Specifications section of this
guide for proper filter selection.
Spin-on type primary and secondary
fuel filters are used on Series 50
engines. The spin-on type filter
consists of a shell, element and gasket
unitized into a single cartridge and a
filter adaptor which includes threaded
inserts to accept the spin-on cartridges.
An optional fuel/water separator may
be installed in p lace of the standard
primary filter.
All information subject to change without notice. (Rev. 01/04) 89
DDC-SVC-MAN-0058 Copyright © 2004 DE TROIT DIESEL CORPORATION