adding oil GMC SIERRA 1997 Owners Manual

If there seems to be no leak, start the engine again. See
if the fan speed increases when idle speed is doubled by
pushing
the accelerator pedal down. If it doesn’t, your
vehicle needs service. Turn off the engine.
How to Add Coolant to the Coolant
Recovery
Tank -- Gasoline Engines
If you haven’t found a problem yet, but the coolant level
isn’t at or above the COLD mark, add a
50/50 mixture of
clean water (preferably distilled) and DEX-COOL@
(silicate-free) antifreeze at the coolant recovery tank. (See
“Engine Coolant’’
in the Index for more information.)
I
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix
will. Your vehicle’s coolant warning
system is set for the proper coolant mix.
CAUTION: (Continued) With plain water
or the wrong mix, your engine
could get too hot but you wouldn’t get the
overheat warning. Your engine could catch fire
and you or others could be burned. Use a
50/50
mix of clean water and DEX-COOL@coolant.
I NOTICE:
r
~~
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mix.
5-15
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If the differential is at operating temperature (warm),
add enough lubricant to raise the level to the bottom of
the filler plug hole.
If the differential is cold, add enough lubricant to raise
the level to 1/2 inch (12 mm) below the filler plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See “Recommended Fluids and
Lubricants” in the Index.
Engine Coolant
The cooling system in your vehicle is filled with
new DEX-COOL@ engine coolant. This coolant is
designed to remain in your vehicle for
5 years or
150,000 miles (240
000 km), whichever occurs first,
if
you add only DEX-COOL@ extended life coolant.
The following explains your cooling system and how to
add coolant when
it is low. If you have a problem with
engine overheating, see “Engine Overheating” in
the Index.
A 50/50 mixture of water and the proper coolant for
your vehicle will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 “F (1 29°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning gages work as they should.
NOTICE:
When adding coolant, it is important that you use
only
DEX-COOL@(silicate-free) coolant.
If coolant other than DEX-COOL@ is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX-COOL@ is not
covered by your new vehicle warranty.
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What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL’ coolant which
won’t damage aluminum parts.
If you use this mixture,
you don’t need to add anything else.
A CAUTION:
Adding only plain water to your cooling system
can
be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant
mix will. Your vehicle’s coolant warning
system is set for the proper coolant
mix. With
plain water or the wrong
mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use a
50/50 mix of clean
water and
DEX-COOL@ coolant.
NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered
by your
warranty. Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
6-30
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Electrical System ............................... 6-70
Engine
.................................. 6-10. 6-12
Electrochromic
Daymight Rearview Mirror
.......... 2-48
Coolant
..................................... 6-29
Coolant Heater
............................... 2- 14
Coolant Level Check
.......................... 7-45
Coolant Temperature Gage
..................... 2-72
Cooling System Capacity
....................... 6-78
Exhaust
..................................... 2-32
FuseBlocks
............................ 6-71, 6-73
Identification
................................ 6-69
OilLevelCheck
.............................. 7-45
Overheating
................................. 5-11
Running While Parked
......................... 2-32
Specifications
................................ 6-76
StartingYour
................................ 2-13
Underhood Fuse/Relay Center
................... 6-73
Engineoil
.................................... 6-15
Adding
..................................... 6-15
Additives
................................... 6-18
Checking
................................... 6-15
Used
....................................... 6-18
Whentochange
.............................. 6-18
Exhaust. Engine
................................ 2-32
Pressure Gage
................................ 2-75
Fabric Cleaning
............................... 6-60
Fan Control. Climate Control System ............ 3.2. 3.3
Fender Marker Lamp
Bulb Replacement ............. 6-44
FillingYourTank
................................ 6-5
Filter. Air ..................................... 6-19
Finish Care
.................................... 6-64
Finish Damage
................................. 6-66
Flashers. Hazard Warning
......................... 5-2
Flat Tire. Changing
............................. 5-22
Fluid Capacities
................................ 6-78
Fluids and Lubricants
............................ 7-51
Fog Lamps
.................................... 2-45
Foreign Countries. Fuel
........................... 6-4
Four-wheel Drive
......................... 2-22. 6-27
French LanguageManual
11
Front Axle .................................... 6-28
Front Axle Locking Feature
....................... 2-23
FrontTowing
.................................. 5-10
Front Turn Signal Lamp Bulb Replacement ..... 6-42. 6-43
Fuel
.......................................... 6-3
Filling Your Tank
.............................. 6-5
Gage ....................................... 2-78
In Foreign Countries ........................... 6-4
Tank Capacity
............................... 6-78
Fuses and Circuit Breakers
....................... 6-71
FusibleLinks
.................................. 6-71
.. ...........................
bages Engine Coolant Temperature
.................... 2-72
Engine Oil Pressure
........................... 2-75 "
Fuel ....................................... 2-78
Speedometer
................................. 2-65
Tachometer
.................................. 2-65
Voltmeter
................................... 2-70
9-4
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