GMC 1995 Suburban Owner's Manual page 441

Maintenance Schedule I
-
Diesel Engines
42,500 Miles (68 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs
first). AI? Emisxiorz Colltrol
Ser-\lic.c).
C 1
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 12 months. whichever occurs first).
45,000 Miles (72 000 km)
0
Change engine o i l and filter
( o r
every 3 months, whichever occurs
first). A I I Emission Corztt-ol Ser-vicv.
0
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 IO" 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 12 months, whichever occurs first).
0
Replace air cleaner filter. Replace filter more often under dusty
conditions. An EInissiorl Co11ft-ol S ~ ~ w i c o .
: i :
0
For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
7-73