spark plugs CHEVROLET DURAMAX 2006 Owners Manual

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Van models: Change automatic
transmission fluid and filter
(severe service).See footnote (p).•••
Van models: Change automatic
transmission fluid and filter
(normal service).•
Pickup models: Four-wheel drive with
automatic transfer case only: Change
transfer case fluid.See footnote (q).•••
Van models: Replace spark plugs and
inspect spark plug wires.An Emission
Control Service.•
Engine cooling system service
(or every five years, whichever occurs
first).An Emission Control Service.
See footnote (r).•
Inspect engine accessory drive belt.
An Emission Control Service. See
footnote (s).•
6-8
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