Maintenance Schedule I-Gasoline Engines Heavy Duty Emissions - GMC SIERRA 1995 Manual

I
Maintenance Schedule II
-
Gasoline Engines With
Light Duty Emissions
0
Replace spark plugs.
At1
Emission Control Senlice.
0
Inspect spark plug wires.
Ai7
Emission Control Service. ;
0
Replace air cleaner filter. An E~~zission Control Sunice.
-
r!
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap
gasket for any damage. Replace parts as needed. A n E~nission Control
Service.
?
DATE SERVICED BY: ACTUAL MILEAGE
I
<
Maintenance Schedule I
-
Gasoline Engines Heavy
Duty Emissions
The services shown in this schedule up to 60.000 miles
(
100 000 km) should
be performed after 60.000 miles (100 000 km) at the same intervals.
Footnotes
*<:
Drive axle service:
a
a
0
a
Locking Differential
-
Drain fluid and refill at first engine oil change.
At subsequent oil changes, check fluid level and add fluid as needed. If
driving in dusty areas or towing a trailer, drain fluid and refill every
15,000 miles (25 000 km).
Standard Differential
-
Check fluid level and add fluid as needed at
every engine oil change. If driving in dusty areas or towing a trailer,
drain fluid and refill every 15,000 miles (25 00 km).
More frequent lubrication may be required for heavy-duty or off-road
use.
3500 HD Models with applications requiring extreme overload/trailer
towing conditions and high speed (above 45 mph or 72 km/h)
conditions for extended periods of time must have the drive axle fluid
changed every 3,000 miles ( 5 000 km) or
3
months, whichever occurs
first, or must use 75W-140 synthetic fluid meeting GM specifications.
See "Recommended Fluids and Lubricants" in this section.
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