Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-13337828) - 2020 - CRC - 4/17/19
Service and Maintenance
79
Service and
Maintenance
General Information
General Information . . . . . . . . . . . . 79
Maintenance Schedule
Maintenance Schedule . . . . . . . . 81
Recommended Fluids,
Lubricants, and Parts
Lubricants . . . . . . . . . . . . . . . . . . . . 85
Parts . . . . . . . . . . . . . . . . . . . . . . . . . 86
Maintenance Records
Maintenance Records . . . . . . . . . 87
General Information
This maintenance section applies to
vehicles with a diesel engine. For
gasoline engine vehicles, see the
maintenance schedule section in
the owner
’
s manual.
Your vehicle is an important
investment. This section describes
the required maintenance for the
vehicle. Follow this schedule to help
protect against major repair
expenses resulting from neglect or
inadequate maintenance. It may
also help to maintain the value of
the vehicle if it is sold. It is the
responsibility of the owner to have
all required maintenance performed.
Your dealer has trained technicians
who can perform required
maintenance using genuine
replacement parts. They have
up-to-date tools and equipment for
fast and accurate diagnostics. Many
dealers have extended evening and
Saturday hours, courtesy
transportation, and online
scheduling to assist with service
needs.
Your dealer recognizes the
importance of providing
competitively priced maintenance
and repair services. With trained
technicians, your dealer is the place
for routine maintenance such as oil
changes and tire rotations and
additional maintenance items like
tires, brakes, batteries, and wiper
blades.
Caution
Damage caused by improper
maintenance can lead to costly
repairs and may not be covered
by the vehicle warranty.
Maintenance intervals, checks,
inspections, recommended fluids,
and lubricants are important to
keep the vehicle in good working
condition.
Do not have chemical flushes that
are not approved by GM
performed on the vehicle. The
use of flushes, solvents, cleaners,
or lubricants that are not
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