check oil Oldsmobile Cutlass 1998 s User Guide

Refer to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services” in the Index.
Operating the engine with the air cleaner off can
cause you or others to be burned. The air cleaner
not
only cleans the air, it stops flame if the engine
backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it off, and be careful working on the engine with
the air cleaner off.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And,
dirt can easily get
into your engine, which will damage it. Always
have the air cleaner
in place when you’re driving.
Automatic Transaxle Fluid
It is not necessary to check the transaxle fluid level. A
transaxle fluid leak is the only reason for fluid loss. If a
leak occurs, take the vehicle to your Oldsmobile retail
facility Service Department and have it repaired as soon
as possible. You may also have your fluid level checked
by your retailer or service center when you have your oil changed.
Change both the fluid and filter every
50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:
In heavy city h.aff.3~ where the outside temperature
0 In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
regularly reaches
90°F (32” C) or higher.
6-17

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 anfthing else.
Adding only plain water to your coorrng 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 retailer check your cooling system.
I 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.
6-19

Periodic Maintenance Inspections ................ 7-30
Recommended Fluids and Lubricants
............. 7-3 1
Scheduled Maintenance Services .................. 7-4
Short Trip/City Definition
....................... 7-5
Short Trip/City Intervals
........................ 7-5
Maintenance. Underbody ......................... 6-49
Maintenance When Trailer Towing
................. 4-40
Making
Turns with a Trailer ...................... 4-37
Malfunction Indicator Lamp
...................... 2-55
Manual Front Seat
............................... 1-2
Manual Remote Control Mirror
.................... 2-40
Methanol
...................................... 6-4
Mirror Reading Lamps
........................... 2-39
Mirrors
....................................... 2-40
Convex Outside
.............................. 2-41
Inside Day/Night Rearview
..................... 2-40
Manual Remote Control
........................ 2-40
Outside
..................................... 2-40
Power Remote Control
......................... 2-41
Visor Vanity
................................. 2-44
MountainRoads
................................ 4-22
Multifunction Lever
............................. 2-29
Net. Convenience
.............................. 2-43
Neutral. Automatic Transaxle
..................... 2- 19
New Vehicle “Break-In”
......................... 2-13
Nightvision
................................... 4-15
Selecting the Right Schedule
..................... 7-4
Odometer
.................................... 2-49
Odometer. Trip
................................. 2-49
Off-RoadRecovery
............................. 4-11
Oil. Engine
.................................... 6-11
Oil Pressure Warning Light ....................... 2-57
Outside Mirror
................................. 2-40
Overheating Engine
............................. 5-12
Owner Checks and Services
....................... 7-26
Owner Publications. Ordering
..................... 8-10
Paint Spotting. Chemical ........................ 6-49
Park ShiftingInto
................................. 2-23
Shifting Out of
............................... 2-25
Park. Automatic Transaxle
........................ 2-18
Paxking
AtNight
.................................... 2-12
Brake
...................................... 2-12
Brake Mechanism Check
....................... 7-29
Lots
....................................... 2-12
Over Things That
Bum ........................ 2-26
WithaTrailer
................................ 4-39
Passenger Position
.............................. 1-20
Passing
....................................... 4-12
Passing with a Trailer
............................ 4-37
Passlock
...................................... 2-13
Passlock Warning Light
.......................... 2-59
Periodic Maintenance Inspections
.................. 7-30