oil additives CADILLAC SEVILLE 1998 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine As shown in the chart, SAE 1OW-30 is best for your
vehicle. However, you can use
SAE 5W-30 if it’s going
to be colder than
60 OF ( 16 “C) before your next oil
change. When it’s very cold, you should use
SAE
5W-30. These numbers on an oil container show its
viscosity, or thickness. Do not use other viscosity oils,
such as
SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure to use the recommended
oil can result in engine damage not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20°F (-29”C), consider using either an SAE 5W-30
synthetic oil or an SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don’t add anything to your oil. Your dealer is ready to
advise if you think something should be added.
When to Change Engine Oil
Your vehicle has an Oil Life Indicator. This feature
will let you know when to change your oil and
filter
-- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come on
before 3,000 miles
(5 000 km). Never drive your vehicle
more than
7,500 miles (12 500 km) or 12 months
(whichever occurs first) without an oil change.
The system won’t detect dust in the oil.
So, if you
drive in a dusty area, be sure
to change your oil every
3,000 miles (5 000 km) or sooner. Remember to reset
the Oil Life Indicator when the oil has been changed.
For more information, see “Oil Life Indicator” in
the Index.
6-14

Downloaded from www.Manualslib.com manuals search engine 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.
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 mixture will. Your vehicle’s coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
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 mixture of clean water and
DEX-COOL@ coolant.
NOTICE:
If you use an improper coolant mixture, your
engine could overheat
and be badly damaged.
The repair cost wouldn’t be covered by your
warranty.
Too much water in the mixture 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.
6-23

Downloaded from www.Manualslib.com manuals search engine Driver Information Center Messages ................ 2-82
Driver
No . X Message ........................... 2-84
Driver Position
................................. 1-12
Driver’s Outside Auto-Dimming Rearview Mirror
..... 2-50
Driving City
........................................ 4-20
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-2 1
InaBlizzard ................................. 4-27
In Foreign Countries
........................... 6-5
In the Rain
.................................. 4-17
Night
...................................... 4-15
OnCurves
.................................. 4-1 0
On Grades While Towing a Trailer ............... 4-37
On
Hill and Mountain Roads .................... 4-23
On Snow or Ice
.............................. 4-26
Through Water
............................... 4- 19
WetRoads .................................. 4-17
Winter
...................................... 4-25
With a Trailer
................................ 4-35
DRL
......................................... 2-41
DrunkenDriving
................................ 4-3
Electrical Equipment. Adding
............... 2-20. 3-43
Electrical System
............................... 6-59
Electrochromic Daymight Rearview Mirror
.......... 2-46
Electronic Level Control ......................... 4-3 1
Electronic Solar Sensor
........................... 3-4
Engine
....................................... 6- 10
Compartment Bussed Electrical Center
............ 6-60
Coolant
..................................... 6-22
Coolant Heater
............................... 2-20 Coolant Hot-Idle Engine Message
................ 2-84
Coolant Temperature Gage
..................... 2-69
Coolant Temperature Warning Light
.............. 2-69
Exhaust
........................... 2-29’4-28’4-35
Hot
- A/C Off Message ........................ 2-84
Identification
................................ 6-58
Misfire .. Ease Off Gas Pedal Message ........... 2-85
Overheated Stop Engine Message
................ 2-85
Overheating
................................. 5-15
Power Reduced Message
....................... 2-85
Running While Parked
......................... 2-30
Specifications
................................ 6-66
StartingYour
................................ 2-19
Engine Oil
.................................... 6-11
Adding
..................................... 6-12
Additives
................................... 6-14
Checking
................................... 6-12
Used
....................................... 6-15
What Kind
of Oil to Use ....................... 6-13
Whentochange
.............................. 6-14
Engine Speed Limiter
............................ 2-64
EnglisWMetric Display
.......................... 2-63
Ethanol
........................................ 6-4
Exhaust. Engine
...................... 2-29,4-28, 4-35
Express-Down Window
........................... 2-31
Exterior Lamps
................................. 2-40
Exterior Lighting Battery Saver
.................... 2-44
OnReminder
................................ 2-41
Fabric Cleaning
............................... 6-51
Filling a Portable Fuel Container
.................... 6-8
Filter. Air
..................................... 6-16
FillingYourTank
................................ 6-5
8-4