Engine 011 Viscosity
Lowest
Recommended
Recommended
Temperature
Single
MulU-
Anticipated
Viscosity
Viscosity
Above +40
°
F
SAE 30 or 40
SAE 10W-30,
20W-40, or 10W-40
Above 0
°
F
SAE 20W-20
SAE 1 OW-30 or
10W-40
-
Below 0
°
F
SAE 10W*
SAE SW-20 or
SW-30
•sustained high speeds (above 55 mphl should be avoided when
using SAE 10W engine oll since oil consumption may be greater
under this condition.
Engine OIi FIiier Cap
Your filter-type V-8 oil filler cap should be cleaned with kero
sene and then soaked in engine oil every 30,000 miles for CJ
models and every 15,000 miles for Cherokee, Wagoneer, and
Truck-more often under heavy-duty driving conditions.
Automatic Transmission Fluid Change
Change fluid every 25,000 miles for normal driving and every
10,000 miles for heavy-duty driving.
To change automatic transmission fluid, proceed as follows:
• Drain fluid, 1mmed1ately after vehicle operation, before 1t
cools.
• Remove the transmission bottom pan screws, pan and
gasket.
• Remove 011 filter and discard.
• Remove and discard 0-ring seal from the pick-up pipe.
• Install new 0-ring seal on the pick-up pipe, and install the
filter and pipe assembly.
• Thoroughly clean the bottom pan and position a new
gasket on the pan. Use petrolatum or equivalent.
• Install bottom pan; secure with attaching screws and
tighten to 1 O to 13 foot-pounds torque.
• Pour approximately 5 quarts of DEXRON · or DEXRON · II
automatic transmission fluid in the filler pipe. (Be sure
�
that container spout. funnel or other items in contact
.. ·•
with the fluid are clean.)
• Start engine-allow 11 to idle for a few minutes.
• Apply brake pedal and parking brake. Shift transmis-
sion into all positions then place selector lever in P (Park).
• With transm1ss1on warm, check fluid level: add fluid to
bring level to the FULL mark.
99
Summary of Contents for Cherokee 1977
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