1988 FORD BRONCO octane

284
*
[SV08710( ALL)04/95]
Octane recommendations
*
[SV08725( ALL)04/95]
Your vehicle is designed to use regular
unleaded fuel with an octane rating of 87.In
most cases, it is not necessary to use a fuel with
an octane rating higher than 87. At service
stations, the octane rating is displayed on a label
on the pumps.
*
[SV08900( ALL)05/95]
one inch art:0060001-C
Typical octane rating label
*
[SV09050( ALL)05/95]
In some parts of the country, ªregularº grade
fuels are sold with octane ratings of 86 or even
less, especially in high altitude areas. We
recommend that you do not use these fuels.
Always use a fuel with an octane rating of 87,
even if it is sold as a ªmidgradeº or ªpremium.º
*
[SV09200( ALL)05/95]
Do not be concerned if your vehicle sometimes
knocks lightly when you drive up a hill or when
you accelerate. However, if a fuel with the
recommended octane rating knocks heavily
under all driving conditions or knocks lightly
driving at cruising speed on level roads, see
your dealer or a qualified service technician.
Persistent, heavy knocking can damage the
engine.
*
[SV09435( ALL)05/95]
Fuel quality
*
[SV09450( ALL)05/95]
If you are experiencing starting, rough idle or
hesitation problems when the engine is cold, it
may be caused by fuel with low volatility. Try a
different brand of fuel. If the condition persists,
see your dealer or a qualified service technician.
File:ltsvb.ex
Update:Tue Jun 20 16:56:22 1995
ProCarManuals.com

370 Index
Four-Wheel Drive vehicles (continued)
lever operated............ 189
special notice.............. 5
towing..............252±253
Four-wheeling with Ford supplement.... 5
French owner guides, how to obtain.... 3
Fuel
calculating fuel economy........ 289
capacity............... 344
choosing the right fuel......... 283
comparisons with EPA fuel economy
estimates.............. 289
filling your vehicle with fuel...... 281
filter, specifications.......... 346
fuel gauge............... 84
improving fuel economy........ 290
octane rating............. 284
quality................ 284
running out of fuel.......... 288
storing your vehicle.......... 352
treating emergencies.......... 286
Fuel cap
removing............... 282
replacing.............282, 288
Fuel filler door............. 282
Fuel filter, specifications......... 346
Fuel gauge................ 84
Fuel pump shut-off switch, starting after a
collision................ 69
Fuse panels
instrument panel........... 323
power distribution box........ 326
Fuses
checking and replacing........ 330
circuit breakers............ 332
G
Gas cap (see Fuel cap).......... 281
Gas mileage (see Fuel economy) . . . 283, 289
Gasoline (see Fuel)............ 281
File:ltixb.ex
Update:Fri Jun 9 15:21:14 1995
ProCarManuals.com

374 Index
Lug nuts, tightening sequence...... 249
Lumbar support, seats.......... 134
M
Maintenance schedule and record
(see separate Maintenance Schedule
and Record booklet)........... 3
Maintenance (see Servicing)....... 275
Manual transmission
clutch................ 316
driving................ 182
fluid, checking and adding....... 316
lubricant specifications......... 347
shifting gears............. 183
shift speeds.............. 185
Master cylinder, brakes......... 318
Mileage, calculating fuel economy..... 289
Mirrors
automatic dimming rearview mirror . . 136
dual electric remote control...... 139
rearview............... 135
side view mirrors (manual)...... 137
Motorcraft parts............. 346
N
National Highway Traffic Safety
Administration............ 262
O
Octane rating.............. 284
Odometer................. 87
Off road driving, 4-wheel drive...... 200
Oil filter................ 346
Oil (see Engine oil)........... 290
On-board diagnostic (OBD II) system . . . 341
Order forms, service information..... 267
Overdrive................ 179
File:ltixb.ex
Update:Fri Jun 9 15:21:14 1995
ProCarManuals.com