1993 OLDSMOBILE SILHOUETTE octane

Fuel
Use regular unleaded gasoline rated at
87 octane or higher. It should meet
specifications
ASTM D4814 in the U.S.
and
CGSB 3.5-92 in Canada. These
fuels should have the proper additives,
so you should not have to add anything
to the fuel.
In the U.S. and Canada, it’s easy to be
sure you get the right kind of gasoline
(unleaded). You’ll see
“UNLEADED”
right on the pump. And only unleaded
nozzles will fit into your vehicle’s filler
neck.
Be sure the posted octane
is at least 87.
If the octane is less than 87, you may get
a heavy knocking noise when you drive.
If it’s bad enough, it can damage your
engine.
If you’re using fuel rated at 87 octane or
higher and you still hear heavy
knocking, your engine needs service.
But don’t worry
if you hear a little
pinging noise when you’re accelerating or driving up
a hill. That’s normal, and
you don’t have to buy a higher octane
fuel to get rid of pinging. It’s the heavy,
constant knock that means you have a
problem.
What about gasoline with blending
materials that contain oxygen, such
as
MTBE or alcohol?
MTBE is “methyl tertiary-butyl
ether:’ Fuel that is no more than
15 %
MTBE is fine for your vehicle.
Ethanol is ethyl or grain alcohol.
Properly-blended fuel that
is no more
than
10% ethanol is fine for your
vehicle.
Methanol is methyl or wood alcohol.
Fuel Capacity: 20 U.S. Gallons (76L).
Use unleaded fuel only.
227
ProCarManuals.com

316
New Vehicle “Break-In”
Requirements
............ .60. 178
Night Driving
.................. 159
Night Vision
................... 160
octane Requirements
(see
Fuel Requirements)
Odometer and Speedometer ....... 103
Oil. Engine ................... 225
Pressure Gage
................ 106
Pressure Indicator
............. 106
Quality
..................... 227
Thickness
................... 227
UsedOil
.................... 230
When to Change .............. 229
Oil Warning
................... 106
Operation
of Lights .............. 80
Outside Rearview Mirrors
......... 92
Overhead Console
............... 85
Overheated Engine .............. 195
Warnings
........... .195, 236, 238
Owner Checks
& Services ........ 287 park.
Shifting Into
.............. 69
Parking On
Hills ................ .171. 183
Parking Brake
.................. 68
Parking on
Hills ........... .171. 183
Passing
....................... 156
Payload ...................... 245
Over Things That
Burn.
......... 71
With the Engine Running
.... .70. 72
Passenger Belts (see
Safety Belts)
Periodic Maintenance Inspections ... 290
Polishing and Waxing
(see
Appearance Care)
Power (Anti-Lock) Brakes ........ 149
Power Door Locks
.............. 48
Power Mirrors
.................. 92
Power Outlet. Accessory
.......... 90
Power Seat Controls ............. 15
Power Sliding
Door .............. 54
Power Steering
................. 153
Power Steering Fluid
... .238. 270, 272
Power Windows
........... .74. 268
Pregnancy. Use of Safety Belts During
...................... 29
Problems on the Road
........... 185
Publications
.................. 304 Radiator
Overheating
(see Overheated Engine)
Radiator Pressure Cap ........... 238
Radio (see
Audio Systems)
Reading Lights .................. 85
Rear Climate Control
............ 117
Rear Interior Lights
.............. 89
Rear Seats
...................... 17
Adjusting
.................... 19
Removing
.................... 18
Replacing
.................... 20
Third Row Entry
............... 17
Rear Window Defogger
........... 119
Rear Window Wiper and Washer
.... 84
Rearview Mirror
................ 92
Reclining Seatbacks
.............. 15
Reminder Light ................. 25
Remote Keyless Entry
............ 49
Replacement Bulbs
.............. 273
Replacement Fuses
............. 265
Replacement
Parts .............. 271
Remote Fuel Door Release
........ 219
Removing Rear Bucket Seats
...... -18
Replacing Brake System
Parts ..... 242
Replacing Bulbs
........... .243, 244
Replacing Rear Bucket Seats
....... 20
ProCarManuals.com

Service Sation information
Batte
The Delco Freedom@ battery -
needs no water. See We 242
Tmnsax/e Fluid
See Page 232
See CertificatiodTire label on
rear edge of driver’s door.
See Page 248
/+
Capacity 20 U.S. Gal. (76 L)
Use unleaded gas only,
87 octane or higher.
See Page 217
Check and add coolant only at the
coolant recovery
tank. The fluid should be
at the
FULL HOT mark when the engine
is warm.
See Page 235
\Spare Tire Pressure
Compact Spare: 60 psi (420 kPa)
See Page 212
ProCarManuals.com