GMC 1995 Suburban Owner's Manual page 456

Maintenance Schedule
II
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Diesel Engines
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(Cnrztirzued)
0
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. See "Tires" in the Index.
El
Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
:3'i:
DATE
I
ACTUALMILEAGE
I
SERVICED BY:
I
50,000 Miles (80 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs
first). An Emission C o m d Ser-\icv.
I7
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should not be lubricated unless their temperature is 10" F
(-12" C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every I2 months, whichever occurs first).
0
Change automatic transmission fluid and filter if the vehicle is mainly
driven under one or more of these conditions:
In heavy city traffic where the outside temperature regularly
reaches 90°F (32OC) or higher.
0
In hilly or mountainous terrain.
0
When doing frequent trailer towing.
0
Uses such as found in taxi, police or delivery service. If you do
not use your vehicle under any of these conditions, the fluid
and filter do not require changing. Manual transmission fluid
doesn't require change.
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