2008 AUDI S8 fuel additives

Fuel supply and filling your fuel tank
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol}
• Anti -knock index must be 87 AKI or higher.
• Blend must not contain more than 10% ethanol.
Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well for
winter or summer driving. During seasonal change-over, we suggest
that you fill up at busy gas stations where the seasonal adjustment
is more likely to be made in time.
0 Note
• Methanol fuels which do not meet these requirements may
cause corrosion and damage to plastic and rubber components in
the fuel system.
• Do not use fuels that fail to meet the specified criteria in this
chapter.
• If you are unable to determine whether or not a particular fuel
blend meets the specifications, ask your service station or its fuel
supplier.
• Do not use fuel for which the contents cannot be identified.
• Fuel system damage and performance problems resulting from
the use of fuels different from those specified are not the responsi ­
bility of Audi and are not covered under the New Vehicle or the
Emission Control System Warranties.
• If you experience a loss of fuel economy or driveability and
performance problems due to the use of one of these fuel blends,
we recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon
deposit build-up caused by the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another,
they have certain things in common. All gasoline grades contain
substances that can cause deposits to collect on vital engine parts,
such as fuel injectors and intake valves. Although most gasoline
brands include additives to keep engine and fuel systems clean,
they are not equally effective.
Audi recommends using TOP TIER Detergent Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the offi­
cial website (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build -ups can rob your engine of peak performance.
(D Note
Damage or malfunction due to poor fuel quality is not covered by
the Audi New Vehicle Limited Warranty. •
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear side panel behind the
fuel filler flap.
If the power locking system should fail, you can still open the flap
manually - for detailed instructions
see=> page 305.
You can find the fuel tank capacity of your vehicle in Technical Data
=> page 378. ~

lll'ffll_....:..A..:.;l~ p :..;h..:.; a= b..:e :..;t:.:..i c::..:: a.:..l .,;. in :..:..:. d:..;e :..;x..:..,_ ___________________________________________ _
Driver's seat memory . . . . . . . . . . . . . . . . . 94
Activating remote contro l key .. ... .. 95
Recalling a seat position ...... .... . 94
Storing a seat position ............. 94
Driving messages .................... 29
Dr ivingsafely .... .... .... ...... .... 198
Driving time .... ... .. .... .... ...... .. 38
Dup licate key ......... ............... 47
DVD p layer for navigation system . . . . . 112
E
Easy entry feature 129
Electromechanica l parking brake
Emergency braking ............... 136
Malfunction ........ .... .... .... . 136
Operation . . . . . . . . . . . . . . . . . . . . . . . 134
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 135
Re leasing and app lying .... .... ... 134
Starting
off with a trailer . ...... ... 136
Warning/indicator lights ........... 22
Electronic differential lock (EDU
How the system works . . . . . . . . . . . . 269
Warning/indicator lights ........... 21
Electronic immobilizer .. ...... ..... 14, 49
Electron ic power contro l
(EPC) warning/indicator light .. .... .. 18
Electronic speed limiter .. .. .. .... ..... 28
Electronic stabi lization program (ESP)
How the system works . . . . . . . . . . . . 268
Warning/indicator lights ........... 18
Emergency braking .. ....... .. ...... 136 Emergency
closing
Power sunroof ................. 67, 68
Emergency flasher . . . . . . . . . . . . . . . . . . . 73
Warning/indicator lights ..... ...... 19
Emergency locking ....... .... .... .... 54
Emergency locking of doors ........... 54
Emergency starting ........ .... ... .. 364
Emergency towing ..... .. .... .... ... 366
Emergency warning triangle ... ....... 348
Energy management .... .... ... .. ... 274
Battery power . . . . . . . . . . . . . . . . . . . 275
Driver notification ................ 275
Engine 4.2 I, 8-cylinder (350 hp) .... .... ... 308
6 .0 I, 12-cylinder (450 hp) .......... 309
Compartment . .... .... .... .. 308, 309
Coolant ......................... 314
Hood ... .. .... .... .... .... .... .. 306
Starting ...... .............. 129, 130
Starting with jumper cables .. ... .. 364
Stopping ........................ 131
Engine compartment ... .. .... .... ... 308
Safety instructions .......... ..... 307
Working the engine compartment .. 307
Engine coolant ..................... 314
Adding coolant ............. ..... 316
Checking the engine coo lant level .. 315
Expansion tank .................. 315
Malfunction symbo l ...... .... .... . 31
Radiator fan ...... .... .... .... ... 317
Temperature gauge . . . . . . . . . . . . . . . 12
Engine data ........................ 378 Engine hood
Closing ..... .. .... .... ...... ... . 307
How to release the hood . . . . . . . . . . 306
Engine oi l ..... ... .... .... .... ...... 309
Adding ......................... 312
Additives ........................ 312
Changing .. .... .... ..... .. .... .. 313
Checking the engine oil level ....... 311
Indica tions and conditions requiring extra
checking .. ...... .... ...... .... 311
Oil consumption ................. 311
Oil grades .. .... .... ... .... .... .. 309
Oil level symbol .... .... ...... ... .. 35
Pressure ma lfunction ... ... .... .... 32
Recommended oil check intervals .. 311
Sensor defective . . . . . . . . . . . . . . . . . . 35
Specification and viscosity ......... 309
Environment Break -in period .................. 277
Catalytic converter .... .... .... ... 278
Disposing of your vehicle battery ... 322
Driving at high speeds ....... ... .. 279
Driving to minimize pollution and noise .
279
Fuel ...... .... ........... .... ... 303
Fuel economy .......... .... .... .. 279
L eaks under your vehicle .......... 307
Le tting the vehicle stand and warm up ..
280
Proper disposal of drained brake fluid
318
Proper disposal of drained engine coolant . .... .... .... .... ....... 316

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a_l _in _ d_e _ x __ lllll
Proper disposal of drained engine oil ...
312,3 13
Recycling used engine oi l ...... .... 312
Un leaded fuel ..... .... ... .... .... 301
What should I do with an old battery?
322
EPC
See Electronic power control ........
18
ESP
See E lectronic stabi lization program
( E SP) ...........................
18
Event Data Recorder (EDR) ... .... .... . 268
Expans io n t ank ...... .... ... .... .... 315
F
Fan
Rad ia tor .. ...... .... .... ... .... .
317
Flat tire changing .. ... .... .... ... .. .. 45
Floor mats ... .. .... .... .... ... .... . 205
Fog lights
Front . ...... .... .... .... ..... .. ..
71
Rear .... ... .. .... .... ... .... .... . 71
Warning/indicator lights ...... .... .. 19
Fo lding master key with remote control .
47
Foot pedals ........................ 204
For the sake of the environment
Gaso line fumes and the enviro nment
303
Letting yo ur engine warm up . ...... 130
Reduc ing eng ine noise by ea rly
upshifting .. .... .... ............
12
Refuel ing .... .... ....... .... .... 303
Saving fuel by early upshifting .. .... 12
Using the rear w indow defogger .... 124
Controls and equip­ ment Safety first
Front airbags
Description ......... ...... .... ...
222
How they work .... .... .... ....... 227
F ront arm rest
adjusting .........................
93
Storage compartm ,ent .............. 93
Fr ont ash tray .. ...... .... .... .... ... 106
Front fog lights ..... .... .... .... .... . 71
Front seats ...... ...... ... .. .... .... . 86
Adjusting ....................... 201
Child restraints in the front seat . ... 220
Convenience side view ............. 91
Pockets ............. .... .... .... 11 0
Symmetrica l seat positions ......... 91
Fronta l collisions and the laws of phys ics
210
F uel
Additives ..... .... .... .... .......
301
Average consumption ...... .... .... 38
Blended gasoline .... ....... .... .. 301
Fuel filler neck ............. .... .. 302
Fuel gauge .. ....... .... .... .... .. 14
Gaso line .. .... ..... ...... .... ... 301
Gaso line additives .. ....... ....... 302
Instantaneous fuel consumption .. ... 38
Low fue l level sym bol ... .. .... .... . 35
Octane rating ... .. .... .... .... ... 301
Rec ommendat ion ... .... ... .. .... 301
Refuel ling .. ...... .... .... .... ... 303
Reserve ... ....... .... .... ....... . 14
Tank capacity ................. 14,378
Unlocking the fuel filler flap by hand 305
Fuse arrangement . ...... .... ..... .. . 358
G
Garage door opener (HomeLink®) ...... 191
Gas discharge lamps ...... .... .... ... 362
Gauges
Engine coolant temperature . ...... ..
12
Fuel gauge . ...... .... ... .... .... . 14
Speedomete r ..... .... ... .... ..... 14
Tac ho m eter . ... ... .... ... .... .... . 13
Trip odometer ... .. .... .... ...... .. 14
Gene ral il lustration
Instruments a nd controls ... .. .... ..
11
Generator
Warning/indicator lights ...... .... ..
18
G lossa ry of tire and loading te rmin ology . . .
325
Glove compartment ................. 109
cd changer ........... .... .... ...
109
Owner's Literature ................ 109
Gross Vehic le We ight Rating (GVWR) ...
375
H
Head restraints ....... ... .... .... ... 203
Adjusting ...... .... ... .... .... ... 203
Comfort head restraints ............ 91
Front seats ... .... .... .... .... .... 91
Rear seats .... .... .... ...... ... .. .
92
Headlight ra nge co ntrol ...... .... ... .. 36
Headlights .. .. .. .... .... ...... .... .. 69
Adaptive Light .................... 72
Defective .. ........... .... .... .... 26
Front fog l ig hts .................... 71
Vehicle operation Vehicle care Do-it-yourself service Technical data