1993 CHEVROLET SUBURBAN gas type

Scheduled Maintenance Services
Scheduled Maintenance Services
This part tells you the maintenance services that you should h\
ave done and
the times you should schedule them. Your
GM dealer knows your vehicle best
and wants you to be happy with it.
If you go to your dealer for your service
needs, you’ll know that GM-trained and supported service peop\
le will perform
the work using genuine GM parts.
These schedules are for vehicles that:
carry passengers and cargo within the recommended limits. You will find
these limits on your vehicle’s Certification Label. See “L\
oading Your
Vehicle” in the Index.
are driven on regular road surfaces, and within legal driving \
limits.
are driven off-road in the recommended manner. See the index Under
use the recommended fuel. See “Fuel” in the Index.
“Off Road Driving With Your Four Wheel Drive Vehicle.”
Selecting The Proper Maintenance Services
To find the proper maintenance schedule for your vehicle, you must know\
two
things. What engine your vehicle has, and how you use your ve\
hicle. Your
engine type will tell you which chart to use, and your driving conditions will
tell you which schedule to use. The charts are found later in this section.
Selecting the Proper Maintenance Chart
Your engine type (Gasoline or Diesel) and its emissions classification (L\
ight
Duty
or Heavy Duty Emissions) will tell you which maintenance chart to use.
Find your Vehicle Identification Number (VIN), and
look at the eighth character
to see what your engine code is. Then use the following Engine Emissions
Classifications table
to find your emissions classification.
Your VIN is on the plate on the top left corner of your instrument panel,
the Certification Label and on the Service Parts Identification Label. See
“Vehicle Identification Number” in the Index.
Certification Label to see what your Gross Vehicle Weight Rating
(GVWR) is. See “Loading Your Vehicle” in the Index.
If your engine has more than one emissions classification, look at your
7-4
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