Chevrolet/GMC 2013 DURAMAX Diesel, Owner'S Manual

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Black plate (8,1)
Chevrolet/GMC DURAMAX Diesel - 2013 - CRC - 5/29/12
11-8 Service and Maintenance
Footnotes — Maintenance
Schedule Additional Required
Services
— Severe
(1) Extreme service. For vehicles
mainly driven off-road in four-wheel
drive or used in farming, mining,
forestry, Department of Natural
Resources (DNR), or snow plowing.
(2) Or every four years, whichever
comes first.
(3) Do not directly power wash the
transfer case output seals. High
pressure water can overcome the
seals and contaminate the transfer
case fluid. Contaminated fluid will
decrease the life of the transfer
case and should be replaced.
(4) Or every five years, whichever
comes first. See Cooling System on
page 10 ‑ 18 .
(5) Or every 10 years, whichever
comes first.
(6) Inspect for fraying, excessive
cracking, or damage; replace,
if needed.
Special Application
Services
. Severe Commercial Use
Vehicles Only: Lubricate chassis
components every 5 000 km/
3,000 mi.
. Have underbody flushing service
performed once a year.
. Replace the fuel filter when the
CHANGE FUEL FILTER
message in the Driver
Information Center (DIC) comes
on. See
Fuel System Messages
on page 5 ‑ 11 . The fuel filter
should be changed at least
every two years. The PERCENT
FUEL FILTER LIFE REMAINING
can be used to decide if the filter
should be changed during
routine service.
On van models, inspect and
clean the fuel pump screen if
necessary at each fuel filter
inspection or replacement.
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required. It is recommended
that your dealer perform these
services
— their trained dealer
technicians know your vehicle best.
Your dealer can also perform a
thorough assessment with a
multi
‐ point inspection to recommend
when your vehicle may need
attention. The following list is
intended to explain the services and
conditions to look for that may
indicate services are required.