1993 CADILLAC FLEETWOOD octane

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
You can be injured if you try to do service work on a vehicle
without knowing enough about it.
0 Be sure you have sufficient knowledge, experience, and the
proper replacement parts and tools before you attempt any
vehicle maintenance task.
0 Be sure to use the proper nuts, bolts and other fasteners.
“English” and “metric” fasteners can be easily confused.
If
you use the wrong fasteners, parts can later break or fall off.
You could be hurt.
1DOUt
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.
1 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,

Downloaded from www.Manualslib.com manuals search engine r
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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.
Gasolines for Cleaner &r
.. -- Your use of gasoline with detergent additives will help prevent deposits
from forming in your engine and fuel system. That helps keep your
engine
in tune and your emission control system working properly. It’s
~ good for your vehicle, and you’ll be doing your part for cleaner air.
Many gasolines are now blended with materials called oxygenates.
General Motors recommends that you use gasolines with these blending
. materials, such as MTBE and ethanol. By doing so, you can help clean
the air, especially in those parts of the country that have high carbon
monoxide levels.
c- In addition, some gasoline suppliers are now producing reformulated
- gasoline. By doing so, you can help clean the air, especially in those parts
gasolines.
These gasolines are specially designed to reduce vehicle
emissions. General Motors recommends that you use reformulated
of the country that have high ozone levels.
253

Downloaded from www.Manualslib.com manuals search engine Fuel Pump ................................ Electric (In Tank)
Fuel Required
......................... Unleaded (87 Octane)
AUTOMMTIC TMSMISSION
Trade Name ............................... Hydra-Matic 4L60
Fluid Required
.............................. DEXRON IIE@
Type
............... 4-Speed Automatic Torque Converter Clutch
Description
............................. Semi-Floating Hypoid
No. of Differential Pinions
................................. 2
Driving Wheel Bearing Type ............................ Roller
Axle Ratio (Fleetwood)
................................ 2.56:l
Axle Ratio (Fleetwood Brougham)
...................... 3.08:l
Axle Ratio (Trailer Towing Option)
...................... 3.73:l
Axle Ratio (Optional
g1/2 Ring Gear) .................... 3.73:l
EMISSION CONTROL SYSTEMS
Air Injection ................ Air Injection Reaction Pump (AIR)
Exhaust Gas Recirculation
......................... EGR Valve
Catalytic Converter
........... Dual Bed, Oxidizing and Reducing
Evaporative Emission Control
................ Charcoal Canister
Crankcase Emission
.............. Positive Crankcase Ventilation
Electronic System
.............................. Closed Loop
EXHAUST SYSTEM
Type ............................... Single with Crossover Pipe
Muffler
.................................. One-Reverse Flow
Resonator
............................. One-Straight Through
Exhaust Pipe
.................................. Stainless Steel
Intermediate Pipe
........................... Aluminized Steel
Tail Pipe
................................... Aluminized Steel
-_ ELECTRICAL SYSTEM
Voltage ................................................ 12
Ground
........................................... Negative
323

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[aintenance Record ................ See Maint . Book. p.44
[arkings. Pavement ................................ 165
[aster Cylinder. Brake .............................. 275
[ethanol In Gasoline ............................... 253
llleage Indicator .................................. 124
.irror. Inside Daymight ............................ 114
irrors. Automatic ................................. 114
:irrors. Front Seat Vanity ........................... 117
.irrors. Outside ................................... 116
irrors. Rear Seat Vanity ............................ 117
ist. Driving In .................................... 191
yobile Telephone. Adding A ...................... 143. 312
.onitors. Lamp .................................... 113
:ountain Driving .................................. 198
:TBE In Gasoline ................................. 253
: ud. If You’re Stuck In ............................. 249
..
N
“N” (Neutral) Gear Position .......................... 85
New Vehicle “Break-In” .............................. 78
Night. Driving At ................................... 185
Night Vision ....................................... 186
Notices About Damage ................................ 2
0
Occupant Restraint .................................. 19
Octane Required For Your Car ....................... 252
Odometer ......................................... 124
Odometer And Speedometer ......................... 124
Odometer. Trip .................................... 124
Off (Ignition Key Position) ............................ 79
Off Road Recovery ................................. 181
Oil Additives. Engine ............................... 263
Oil. Engine ........................................ 258
Oil. What Kind of Oil to Use ......................... 261
Oil. When To Change Your Engine .................... 263
Oil Life Indicator ................................... 136
Oil Quality ........................................ 261
Oil Thickness (Viscosity) ............................ 262
Operating Record
Operation In Foreign Coun
Outside Air
............
Outside Temp ...........
Outside Mirrors ..........
-I .......
. t.
.......... See Maint . Book. p.44
ries ...................... 254
.......................... 138
.......................... 139
.......................... 116
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