7-45
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See ªAudio Systemsº in the 
Index for further details.
At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly. Look for any other loose or damaged
safety belt system parts. If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas of the windshield. Also see ªWiper Blades,
Cleaningº in the Index.
Spare Tire Check
At least twice a year, after the monthly inflation check
of the spare tire determines that the spare is inflated to
the correct tire inflation pressure, make sure that the
spare tire is stored securely.Engine Air Cleaner Filter Restriction 
Indicator Check
Your vehicle has an indicator located on the air cleaner
in the engine compartment that lets you know when the
air cleaner filter is dirty and needs to be changed. Check
indicator at least twice a year or when your engine oil is
changed, whichever occurs first. See ªAir Cleanerº in
the Index for more information. Inspect your air cleaner
filter restriction indicator more often if the vehicle is
used in dusty areas or under off road conditions.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. See ªRecommended Fluids and Lubricantsº 
in the Index.
Manual Transmission Check
Check the transmission fluid level; add if needed. See
ªManual Transmission Fluidº in the Index. Check for
leaks. A fluid leak is the only reason for fluid loss. Have
the system inspected and repaired if needed. 
7-51
Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name, 
part number or specification may be obtained from 
your dealer.
USAGE
FLUID/LUBRICANT
Engine Oil
(Gasoline
Engine)Engine oil with the American
Petroleum Institute Certified for
Gasoline Engines starburst symbol
of the proper viscosity. To
determine the preferred viscosity
for your vehicle's engine, see
ªEngine Oilº in the Index.
USAGEFLUID/LUBRICANT
Engine Oil
(Diesel Engine)Engine oil with the letters CH-4 or
CG
-4 is best for your vehicle. The
CH
-4 or CG-4 designation may
appear either alone, or in
combination with other API
designations, such as API
CH
-4/SJ, CG-4/SH or
CH
-4/CG-4/SJ. These letters show
American Petroleum Institute
(API) levels of quality. To
determine the preferred viscosity
for your vehicle's diesel engine,
see ªEngine Oilº in the Index.
Engine Coolant50/50 mixture of clean, drinkable
water and use only GM
Goodwrench
 DEX-COOL or
Havoline DEX-COOL
Coolant. See ªEngine Coolantº in
the Index.