Peterbilt 325 2017, Operator'S Manual

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LUBRICANT SPECIFICATIONS
Type Grade (SAE) Ambient Temperature
Synthetic Engine Oil meeting MIL-L-2104D or
MIL-L-46152B, API-SF or API-CD CD50
CD30 All
*Synthetic Gear Oil Meeting MIL-2105C or
API-GL5 EP75W90
EP75W140 All
*EP Gear Oils are not recommended when lubricant operating temperatures are above 230° F (110° C).
Oil Changes
CAUTION
When adding oil, types and brands
of oil should not be intermixed be-
cause of possible incompatibility,
which could decrease the effec-
tiveness of the lubrication or cause
component failure.
An initial oil change and flush should
be performed after the transmission
has been placed in actual service.
This change should be made any time
after 3000 miles (4800 km) but never
longer than 5000 miles (8000 km) of
over-the-road service. In off-highway
use, the change should be made after
24 hours but before 100 hours of
service have elapsed. Refilling
Remove all dirt around filler plug. Refill
with new oil of the grade recommended
for the existing season and prevailing
service. Fill to the bottom of the
level testing plug positioned on the
side of the transmission.
Do not
overfill the transmission. Overfilling
usually results in oil breakdown due
to excessive heat and aeration from
the churning action of the gears. Early
breakdown of the oil will result in heavy
varnish and sludge deposits that plug
up oil ports and build up on the splines
and bearings. Overflow of oil can also
escape onto clutch or parking brakes.
When adding oil,
do not mix different
types of oil.
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Y53-6060-1C1 (03/17)
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