2015 AUDI S8 fuel additives

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-Blend must contain not more than 1S%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
espec ially we ll for winter or summer driving.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea­
sonal adjustment is more likely to be made in
time .
(D Note
-Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo­
nents in the fuel system.
- Do not use fue ls that fail to meet the
specified criter ia in this chapter.
- If you are unable to determine whether
or not a particular fue l blend meets the
specifications, ask your service station or
its fuel supp lier.
- 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 responsibility 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 prob­ l ems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Gasoline additives
Appl ies to vehicles : wit h gasoli ne e ng in e
A majo r concern among many auto manufac­
ture rs 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 g rades contain
substances that can cause deposits to collect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
Fuel supply and filling your fuel tank 221
brands include additives to keep engine and
fuel systems clean, they are not equally effec­
tive .
Audi recommends using TOP TIER Detergent
Gasoline . For more information on TOP TIER
Detergent Gasoline, please go to the official
webs ite (www.toptiergas.com).
After an extended per iod of using inadeq uate
fuels, carbon deposit build-ups can rob your
engine of peak performance.
(D Note
Damage or malf unct ion due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Diesel fuel
Applies to veh icles : w ith diese l en gine
Always use ULSD (Ultra Low Sulfur Diesel)
No. 2. The ULSD No. 2 meets the ASTM D97S.
Diesel fuel with concentrations of biodiesel
highe r than S % such as Bll, B2O or BlOO are
strictly prohib ited .
Se rv ice stat ion fuel pumps are labeled with
the cor rect fuel informat ion for easy recogn i­
tion by the user. If the diesel fuel pump is not
labeled ask the station operator what fuel is
being dispensed before filling up your vehicle.
ULSD No. 2 may not be available outside the
USA and Canada. Be sure to check before trav­
eling to other countries .
Winter operation
ULSD No. 2 can become thicker in the winter .
Because of this, gas stations sell ULSD No. 2
with imp roved flow when cold during the win­
ter. Ask the gas stat ion attendant if the diesel
sold is winterized sufficient ly for the current
and the predicted temperatures.
If not winterized o r insuff icient ly w interized
ULSD No. 2 has already thickened to the ex­
tent that the engine will not start, warm the
vehicle up by leaving it in a heated garage.
Ill-
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222 Fuel su ppl y and fillin g yo ur fu el t an k
Cold diesel engines normally produce louder
noises during winter conditions than during
warmer periods . In addition, the exhaust gas ­
es may be light blue in color until the engine has warmed up.
.&_ WARNING
Never use starting assist fluids. They may
be potentially explos ive or cause a "run­
away" engine condition . Th is could resu lt
in ser ious persona l injury and eng ine dam­
age.
- Your vehicle's diesel engine was de­ signed so ley for use with ULSD No. 2.
Therefo re, never use gaso line, heat ing
oi l or other fuels. These fuels contain
substances that will severely damage the
fuel system and the engine. Such dam­
age will not be covered by your New Ve­ hicle limited Warranty.
- If you put any amount of incorrect fue l in
the fue l tank, do not start the engine un­
der any circumstances. Immediately con­
tact the nearest authorized Audi dealer
or authorized Audi Service Facility for as­
s istance. These fuels contain substances
that can severely damage the fuel sys­
tem and the engine if the engine is start­
ed .
- Do not mix additives such as "flow im­
provers", gasoline or other substances
with ULSD No. 2.
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
c> page 2 2 4 .
You can f ind the fue l tank ca pa city of your ve­
hicle in
<=> page 288.
The label on the inside of the fuel f iller flap
te lls you the correct fue l for your vehicle. For
more information about fuel specifications,
see
c> page 220.
Your vehicle fuel tank has an on board refuel­ ling vapor recovery system. This feature helps
to prevent fuel vapors from escaping from the
tank and polluting the environment while you
refuel your vehicle. In order to fill the tank
proper ly while protecting the environment,
please follow this refueling procedure careful­
ly .
.&_ WARNING
Under normal operating cond itions , never
ca rry addit ional fue l conta iners in your car .
Gas canisters and other containers used to
transport fuel can be dangerous. Such con­
tainers, fu ll or empty, may leak and could
cause a fire in a collision. If you must
transport fuel to use for your lawn mower,
snow b lower, etc ., be very careful and al­
ways observe local and state laws regard­
i ng the use, transportation and storage of
such fuel containers. Make certa in the con­
tainer meets industry standards (ANSI/
ASTM
F852 -86).
{(y Note
Never drive your veh icle until the fuel tank
i s completely empty. The irregula r supply
of fue l can cause misfir ing. Gasoline cou ld
enter the exhaust system and damage the
catalytic converter.

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~ If there was no Ad Blue left in the tank and a
range of
O mi (0 km ) was displayed in the
instrument cluster, switch the ignition on
for about 15 seconds before starting the en­
gine.
_& WARNING
Ad Blue can irr itate the skin, eyes and res­
piratory system . If there is contact with
the fluid, flus h immed iately with plenty of
wate r. Consult a physician if necessary.
(D Not e
-Only use Ad Blue that conforms to the
standard ISO 22241-1. Do not mix any
additives with the Ad Blue and do not di­ l ute it with water .
- Do not add Ad B lue to the diesel tank or
add diesel fuel to the Ad Blue tank. M ix­
i ng can lead to damage to the engine
and the Ad Blue tank system . The Limited
New Vehicle Warranty does not cover
such damage.
- Ad Blue attacks surfaces such as painted
vehicle components, plastic and carpet.
Remove the fluid as quick ly as possib le
with a damp cloth and plenty of cold wa­
ter. If the Ad Blue has already crystal­
lized, use warm water and a sponge.
AdBlue residue that is not removed w ill
crystall ize and can damage the affected
surface.
- Do not store the refill bottle in the vehi­ cle. If it leaks, the escap ing Ad B lue could
damage the vehicle inter ior.
- Do not allow Ad Blue to come into con­
tact with clothing. If there is contact
with the flu id, flush immediately with
plenty of water.
(D Tips
- You can obtain refill bott les from any au­
thorized Audi dealer or other qua lified
workshop.
- Follow the AdBl ue manufacturer's in­
str uctions for usage and sto rage.
Fu el su ppl y and fi lling yo ur fu el t an k 22 7
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300 Index
Front airbags
Description .... . ...... ... .. .. .... .
155
Howtheywork . ... .... ... .. .. .... . 160
Fr onta l co llisions and the laws of physics 144
Front passenger seat adjustment ... .. .. 64
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 58
Adjusting . .... . ...... ... .. .. .... . 135
Child restraints in the front seat ..... . 153
Fue l
Additives .... .. .. ..... ... .. .. .... .
220
Blended gasoline . ..... ... .. .. .... . 220
Current consumptio n . . . . . . . . . . . . . . . . 25
Economy messages (efficiency program) 26
Fuel filler flap emergency release .... . 224
Fuel filler neck ........... .. .. .. .. . 222
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline ..................... ... . 220
Gasoline additives . ........... .. .. . 221
Low fue l level symbo l . . . . . . . . . . . . . . . 21
Octane rating .......... .. .. .. .. .. . 220
Recommendation . ..... ... .. .. .... . 220
Refue lling . .... .. ..... ... .. .. .... . 223
Reserve .... ... .. ..... ... .. .. .... .. 11
Tank capacity . . . . . . . . . . . . . . . . . 11,288
Fu ses
Assignment . .. .. ..... ... .. .. .... .
276
Rep lacing . .. .. .. ..... ... .. .. .... . 276
G
Garage door opener (Homel in k) .. .. .. . 131
Garment hooks ................. ..... 75
Gas discharge lamps ... ... .. .. .. .. .. . 280
Gauges
Eng ine coolan t temperature .. .. .. ....
10
Fue l gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer . . . . . . . . . . . . . . . . . . . . . . 26
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Trip odometer . . . . . . . . . . . . . . . . . . . . . 26
General illustration . . . . . . . . . . . . . . . . . . . 8
Generator ..................... .....
16
Glossary of t ire and loading termino logy 246
Glove compartment (cooled) ........... 75
Glow plug system
Indicator light . . . . . . . . . . . . . . . . . . . . .
20
Gross Vehicle Weight Rating (GVWR) .. . 287
H
Head -up Display . . . . . . . . . . . . . . . . . . . . . 28
Head lights
Cleaning .. .. .. .. .. ........ ...... .
215
Cleaning system . . . . . . . . . . . . . . . . . . . . 53
De fec tive . . . . . . . . . . . . . . . . . . . . . . . . . 22
Head light range control . . . . . . . . . 22 , 46
High beam assist .... .. ..... ... .. .. . 49
Washer reservoir ... ... ..... ... .. .. 244
Head restrai nts . . . . . . . . . . . . . . . . . 65, 13 7
Adjusting . .. .. .. ............. .. .. 13 7
Heated exter ior mirro rs . . . . . . . . . . . . . . . . . . . .
55
rear w indow . . . . . . . . . . . . . . . . . . . . . . . 80
sea ts . .. .. .. .. .. .. ............. .. . 80
windshield washer sp ray no zzles . . . . . . 53
Heating ...... .. .. .. ... ....... ... .. . 78
Heavy clothing and safety be lts . ... .. .. 146
Hig h beam .. .... .. ............. ..... 48
Hig h voltage warning label ........... 287
Hill descent contro l .. .... .... ... .. .. 117
Homelink universal remote control .... 131
Hood (re lease lever) . .... ..... ... .. .. 228
Hor n ............................... 8
How are child restraint system anchors re-
lated to chi ld safety .......... .......
187
How many airbags does my vehicle have? 158
How often should I che ck my tire pres-
s ur es? . .. .. .. .. .. ............... ..
2 52
How safety belt pretens ioners work .. .. 149
Hydrop laning ..... ... .. ..... ... .. .. 256
I
Ig nition
Indica tor lights .. .. .... .... ... .. .. .
17
Switching on/off .... .. ..... .... . .. . 83
Immobilize r .. .. .. ............. .. .. . 26
Important t hings to do before driving .. 133
Improperly worn safety belts . . . . . . . . . . 149
Ind icator lights
Dynam ic steer ing ................. .
201
also refer to Warning/indicator lights . . 11
Infant seats .... .. ............. .... 180
Installing child safety seats
Safety be lts . . . . . . . . . . . . . . . . . . . . . .
184