GMC XL Automobile User Manual


 
Additional Required Services
The following services should be performed at the first maintenance service (I or II) after the indicated miles (kilometers)
shown for each item.
Additional Required Services
Service and Miles (Kilometers)
25,000
(41 500)
50,000
(83 000)
75,000
(125 000)
100,000
(166 000)
125,000
(207 500)
150,000
(240 000)
Inspect fuel system for damage or leaks. •••• ••
Inspect exhaust system for loose or
damaged components.
•••• ••
Replace engine air cleaner filter.
See Engine Air Cleaner/Filter on page 5-21.
••
Change automatic transmission fluid
and filter (severe service).
See footnotes (g) and (h).
••
Change automatic transmission fluid and
filter (normal service). See footnote (g).
Automatic transfer case only: Change
transfer case fluid. See footnote (g).
••
Replace spark plugs.
An Emission Control Service.
V8 engine only: Inspect spark plug wires.
An Emission Control Service.
6-6