fuel additives AUDI S6 2008 Owners Manual

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 295.
You can find the fuel tank capacity of your vehicle in Technical Data
=> page 363. .,_

___ C_h_ e_ c_k _in --=:: g;__ a_n _d_ f_il _li _n ..:g:a.- ___________________________________________ _
Oil level within range
©
- You must add oil. Afterwards, the oil level should be
within range@.
The oil level needs to be checked at regular intervals. The best times
to do this are whenever you refuel and prior to long tr ips. •
Adding engine oil 'l:::1':
Fig. 234 Engine
compartment: Oil filler
cap locat ion
Before you check anything in the engine compartment,
always read and heed all WARNINGS~ & in "Working in
the engine compartment" on
page 297.
Unscrew the cap ~ fig. 234.
Carefully top off with the appropriate o il in 0.5 liter doses.
- Check the oil level again after two minutes ~
page 301.
Top off the oil again, if necessary.
Screw the cap back on the filling hole and slide the o il
dipstick in as far as it will go.
& WARNING
• While topping off, the oil must not come in contact with hot
engine parts -fire hazard!
• The oil filler cap must be properly secured to prevent oil from
being sprayed on the hot engine and exhaust system when the
engine is running -fire hazard!
• If your skin has come in contact with the engine oil , you must
subsequently cleanse it thoroughly.
0 Note
• T he oil level must not be above range @- danger of converter or
engine damage! Contact an au thorized dealership to draw off oil, if
necessary .
• Audi does not recommend the use of oil additives. They may
damage the engine and adversely affect your New Vehicle Warranty.
• Under no circumstances can the oil come in contact with the
sewage network or the soil.
• Observe and follow legal regulations when disposing of empty
oi l containers .•
Changing the engine oil
We recommend that have your oil changed by an autho­
rized Audi dealer or a qualified service station .
Before you check anything in the engine compartment, always read
and heed all WARNINGS ~
& in "Working in the engine compart ­
ment" on
page 297.
The engine oil must be changed according to the intervals specified
in your Maintenance
& Warranty booklet. This is very important ...

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a _ l _in _ d_e _ x __ ftllll
Proper disposal of drained engine oil 302
Recycling used engine oil ..... ..... 302
Un leaded fuel ..... ....... .... ... . 291
What should I do with an old battery?
311
EPC
See Electronic power control . .... ... 19
ESP
See Electronic stabilization program
(ESP) ..... ... .. .... .... ...... ... 19
Event Data Recorder (EDR) ... .... ..... 258
Expansion tank ...... ....... ........ 304
Exterior lighting in the mirror housing ... 73
Eyeglasses compartment ............. 108
F
Fan
Radiator .............. .......... 306
Fastening eyelets ...... .... .......... 97
Flat tire Changing ... ... ... .. .... ...... .. 338
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 198
Fog lights .... .... .... ... .. .... .... .. 72
Fo lding master key with remote contro l . 48
Foot pedals ...... .. .... .... ..... ... 198
For the sake of the environment Gasoline fumes and the environment 293
Letting you r engine warm up ...... . 125
Reducing engine noise by early
upshifting .. ...... ..... .... ... .. 13
Refuel ing .... .... ....... .... .... 293
Controls and equip­
ment Safety first
Saving
fuel by early upshifting .... .. 13
Usingtherearwindowdefogger .. .. 117
Front airbags
Description ......... .... .... .... . 216
How they work .... ........ ....... 221
Front arm rest adjusting . ...... .... .... ... .... ... 96
Storage compartment ... .... ..... .. 96
Front ashtray .... .... .... ........ ... 104
Front fog lights ..... ........ .... .... . 72
Front seats .. ............ .... ....... . 87
Adjusting ... ....... .... .... .... . 195
Child restraints in the front seat ... . 214
Fronta l collisions and the laws of physics
203
Fuel Additives ... .. ...... .... ..... .... 291
Blended gasoline .... ....... .... .. 291
Consumption ....... .... .... .... .. 40
Fi ller neck ......... .. ... .... .... . 292
Fuel gauge ... .. .... .... ...... .... 15
Gasoline .. .... ... .... .... .... ... 291
Gasoline additives ................ 292
Low fuel level .............. .... 15, 36
Octane rating .................... 291
Recommendation ....... ... ... ... 291
Refuel ling .............. ...... ... 293
Reserve .......................... 15
Tank capacity .... .... ... .... .... . 363
Un locking the fue l f iller flap by hand 295
Fuse arrangement ............. ...... 345 G
Garage door opener (HomeLink®) . .... . 186
Gas discharge lamps . .... ........... . 349
Gauges Engine coolant temperature .. .. .. . .. 13
Fuel gauge ..... .... .. .. . ... ...... 15
Speedometer ... .... ... .. .... ..... 15
Tachometer . .... .... .... .... ...... 14
Trip odometer ... .. .... .... ... .. .. . 15
General illustration Instruments and controls ... .. .... .. 11
Generator Warning/indicator lights ............ 19
G lossary of tire and loading terminology .. .
314
G love compartment ......... .... .... 107
cd changer ... .... .... .... .... ... 107
Valet key function .... .... .... ... .. 51
G love compartment -emergency unlocking
108
Gross Vehicle Weight Rating (GVWR) ... 361
H
Head restraints ... .... ..... ... ... ... 197
Adjusting .. .... .... ... .... .... ... 197
Front seats ... .... .... ... .... ..... 93
Installation and removal ............ 94
Rear seats .... .... .... .... ..... 94, 95
Headlight washer reservoir .. .... .... . 312
Vehicle operation Vehicle care Do-it-yourself service Technical data