2010 AUDI S8 fuel

Driving and environment
New brake pads
Remember that new brake pads do not have a f ull braki ng
e ff e ct during the first 250 miles (400 kilometers) after they
are i nsta lle d.
New bra ke pads have to be "burnished in" before they have opt ima l
grab=> &.
Dur ing the break -in period, you sho uld avoid putting severe loads on
the brakes. Severe loads incl ude, for example, sudden hard braki ng,
in particu lar at very high s peeds or, for examp le, on mountai n passes.
& WARNING
New brake pads don 't have the be st stopping power and must be
" broken -in " during the initial 100 to 150 miles (150 to 200 kilo­
meters ) of normal cit y driving. You can compensate for thi s by
pressing th e brak e pedal more firmly. This also applies lat er wh en
new pad s are installed. n
Catalytic converter
It is very important that your emissio n contr ol system
(catalytic converter) is functioning prop erly to ensure
that your vehicle is running in an environmentally sound
manner.
- Always use lead-free gasoline==> page 283, "Fue l su pp ly" .
- Never ru n the tank down a ll th e way to empty .
- Never put too m uch motor oil in your engine==>
page 294,
"Adding engine o il - Never try to push- or tow-start your veh ic le .
The catalytic converter is an efficient "clean- up" device bu ilt into the
exha ust syste m of the ve hicle. The cat alytic converte r burns many of
the polluta nts in the exhaust gas before they are released into the
atmosphe re.
Th e e xcl usive use of unleaded fuel is cr itic ally important for the life of
the catalytic converter and proper f unction ing of the engine.
& WARNING
• Do not park or operate the vehicle in areas whe re the hot
exhaust sy stem may come in contact with dry grass, brush, fuel
spill or other material which can cause a fire .
• Do not apply additional undercoating or ru stproofing on or
near the exhaust manifold , exhaust pipes, catalytic conve rter or
heat shield s. During driving, the substance used for undercoating
could overheat and cause a fire .
0 Note
• Be aware that just one tank filling wit h leaded fu el wi ll alrea dy
ser iou sly degrade the performan ce of the ca talyt ic co nve rter.
• Do not exceed the correct engine oil leve l=>
page 294 .
• Do not dr ive unti l the f uel tank becomes complete ly empty. The
eng ine could misfire . Unburned fuel could a lso get into the exha ust
system and th is could cause the catalytic converter to overheat.
• Do not t urn o ff the igni tion whi le the ve hicle is moving.
• Do not continue to operate your vehicle under these conditions, as
o therwi se fuel c an reach the cat alytic c onve rter. Th is cou ld resu lt in
over heating of t he converte r, requiring its rep lacement.
• T o ass ure eff ic ient operat ion of the Emi ssion Co ntro l System:
- Have your vehicle maintained properly and in accordance with
t h e se rvice recommenda tions in your Warranty
& M aintenance
booklet. •

Driving and environment
------------------------------------------------'
- Lack of proper maintena nce as well as improper use of the
vehicle w ill imp air t he funct io n of t he emission con trol system and
could lead to damage.
<£> For the sake of the environment
Even when the Emiss ion Contro l System is operating properly, the
exhaust gas can have a sulfur-like exhaust gas sme ll under some
operat ing states. This depends on the s ulfur content of the fue l being
used. Using a differe nt brand of fuel may help, or filling the tank with
lead-free supe r grade gasoline. •
Avoid damaging the vehicle
When you are dr iving on poor roads, or ove r cur bs, steep r amps, etc.,
make certain that low-lying parts such as spoilers and exhaust system
p arts do not bo ttom ou t and ge t damage d.
Th is is espec ia lly true for vehicles with low-slung chass is (sports
chassis)* and fully loaded vehicles .•
Driving through water on roads
N ote the following to avoid vehicle damage w hen driving through
water, fo r examp le on flooded roads:
• The water must not be any higher than the bottom of the vehicle
b ody.
• Do not drive faster tha n walking speed.
& WARNING
After driving through water , mud, slush , etc. , the brakes may be
slow to take effect because of wet brake rotors and pads . Dry the
brakes first by braking carefully to restore the full braking effect.
Controls and equip­ ment Safety first Vehicle operation
0 Note
Vehicle
compone nts such as the engine, tra nsmiss ion, s uspension or
electrical system can be severely damaged by driv ing thro ugh water .
[ i ] Tips
• Check the depth of the water before d riving throug h it.
• Do not stop the vehicle, d rive in revers e or switch the e ngine off
when driving through wate r.
• Keep in m ind that oncoming vehicles may c reate waves t hat raise
the water leve l and make it too deep for yo ur vehicle to drive throug h
sa fely.
• Avoid driving through salt water because it can ca use corros io n.
Operate your vehicle economically
and minimize pollution
General
You r personal style of driving will determi ne the econom y
of your vehicle, as well as exhaust and noise l evels.
Fuel economy, environmenta l impact, and wea r on your eng ine,
brakes and tires largely depend on t hree factors:
• your persona l dr iving style
• operati ng conditions
• t echni cal lim itations
If you an ticipa te what you need to do next and drive economically,
you can easily cut your fuel consumption by 10-15 percent. This
s e ct io n w ill give you so me tip s on how you can he lp the e nvir onme nt
and your pocketbook.
~
Vehicle care Do-it-yourself service Technical data

Driving and environment
(I] Tip s
The consumption estimates as pub lished by ENV IRONMENTAL
PROTECTION AGENCY (EPA) and Transport Canada may not corre­
spond to your actual consumption on the road, which will vary
depending upon vehicle load and speed, road and weather conditions,
trip length, etc. •
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they are accelerating .
-Avo id unnecessary accelerating and braking.
Vehicles use the most fue l when they a re accele rating. If you antici­
pate what is going to happen next, you will need to brake less and,
thus, accelerate less. Let the vehicle coast whenever possible -for
example when you see that the next traffic l ight is red. •
Avoid full throttle
Driving at moderate speeds saves fuel and improves your
mileage.
- Try and keep well below your car's maximum speed .
Accelerating gently reduces fuel consumption, engine wear, and does
not disturb the environment.
Fuel consumption, exhaust emissions and engine noise increase
disproportionately at high speeds . If you drive at approx imately three
qua rters of top speed, fuel consumption will be reduced by one half.
Never drive faster than the posted speed limit and weather condi­
tions permit.
a Reducing unnecessary idling
Even when your car is just idling it burns up fuel.
-
Shut the engine off when yo u are not driving the vehicle.
- Do not warm up the vehic le by letting the eng ine run at
idle.
It makes sense to shut off the engine in traffic jams, when waiting for
trains to pass at rai lroad crossings, o r at traffic lights that have long
wa its on red . Turn ing the eng ine off for just 30-40 seconds saves
more fuel than is burned starting the engine again.
It takes a long t ime for the engine to warm up fully when it is running
at idle. Howeve r, wear and noxious emissions are espec ially high
when the eng ine is wa rm ing up. So you sho uld d rive away as soon as
you start the engine and avoid running at hig h rpms while the eng ine
is still warming up.
0 Note
Do not leave engine idling unattended after starting . If warning
lights should come on to indicate improper operation, they would go
unheeded. Extended idling also produces heat, which cou ld result in
overheat ing o r othe r damage to the vehicle or other p roperty. •
Regular maintenanc_e ____________ _
A badly tuned engine unnecessarily wastes a lot of fuel .
- Have your vehicle serviced at regular intervals .
By having yo ur vehicle regularly se rviced by an Audi dealer helps to
ensure that it runs properly and economically . T he condition of your
vehicle not only a ffects its safety and ability to ho ld its va lue, it a lso
affects
fu el con sumption .
Check your o il e ach tim e you fill you r tank.
~

Driving and environment
------------------------------------------------'
The amount of oil used is related to engine load and speed.
It is normal for the oil consumption of a new engine to reach its
lowest value after a certain mileage has been driven .
You must drive your vehicle about 3,000 miles (5,000 kilometers)
before you can properly assess oil consumption.
This also applies to fuel consumption and engine output .
0 Note
• Have your vehicle maintained properly and in accordance with the
service recommendations in your Warranty
& Maintenance booklet.
Lack of proper maintenance as well as improper use of the vehicle w ill
impair the function of the emission control system and cou ld lead to
damage.
• Do not alter or remove any component of the Emission Control
System un less approved by the manufacturer.
• Do not a lter or remove any device, such as heat shie lds, switches,
ignition wires, valves, which are designed to protect your vehicle's Emission Contro l System and other important vehicle components. •
Fewer short trips
Fuel consumption will always be relatively high on short
trips .
-Try to avoid driving short distances with a cold engine.
The eng ine and catalytic converter have to reach thei r optima l oper­
ating temperature
to reduce fuel consumption and noxio us em is­
sions effectively.
Just after starting, a cold engine in a mid -size car only achieves a fuel
economy of 6-8 miles per gallon (30-40 l/100 km) . After about a half
a mile, fuel economy climbs to 12 mpg (20 l/100 km). After about
2.5 miles (4 km), the engine is at its proper operating temperature
Controls and equip­
ment Safety first Vehicle operation
and fuel economy has
reached a normal level. So you can see that you
should avoid short trips whenever possible.
The
outside temperature is also cr it ical in th is regard . Your car
consumes more fuel in the winter than in the summer. •
Vehicle care Do-it-yourself service Technical data

Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical class 1 or class 2 trailer.
Trailer load distribution
Be sure the load in the trailer is held securely in place to prevent it
from shifting forward, backward or sideways.
Never allow a passenger to ride in a trailer=>
& in "Driving instruc­
tions".
Engine cooling system
Towing a trailer makes the engine work harder. It is important that
the cooling system's performance is up to the additional load. Make
sure that the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your vehicle to the cold tire
pressure listed under "Full load" on the label located either on the
driver's side B -pillar (visible when the door is open) or inside the fuel
filler flap. Inflate trailer tires to trailer and tire manufacturers' spec­
ifications .
Lights
The headlight settings should be checked with the trailer attached
before driving off. Check to make sure both vehicle and trailer lights
are working properly.
Safety chains
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough slack in the chains to permit
turning corners . When you install safety chains, make sure they will
not drag on the road when you are driving.
The chains should cross under the trailer tongue to prevent it from
dropping in case of separation from the hitch .
Controls and equip­ ment Safety first Vehicle operation
Trailer
towingL_,1!:::!:·~-
0 Note
If you are going to tow a trailer, you must activate the trailer opera­
tion mode =>
page 179, "Towing a Trailer". •
Driving instructions
Driving with a trailer always requires extra care and
consideration .
To obtain the best possible handling of vehicle and trailer,
please note the following:
- Do not tow a loaded trailer when your car itself is not
loaded.
- Be especially careful when passing other vehicles.
- Observe speed limits.
- Do not drive at the maximum permissible speed.
- Always apply brakes early .
- Monitor the temperature gauge.
Weight distribution
Towing a loaded trailer with an empty car results in a highly unstable
distribution of weight. If this cannot be avoided, drive at very low
speeds only to avoid the risk of losing steering control.
A "balanced" rig is easier to operate and control. This means that the
tow vehicle should be loaded to the extent possible and permissible,
while keeping the trailer as light as possible under the circumstances.
Whenever possible, transfer some cargo to the luggage compart­
ment of the tow vehicle while observing tongue load requirements
and vehicle loading considerations.
Vehicle care Do-it-yourself service Technical data

-~_C_ le_ a_n_ i_ n_ g=- a_ n_d___. p_ ro_ t_e _c_ t_ i_o _n ___________________________________________ _
Cleaning and protection
General information
Regular care preserves vehicl e val ue.
Any automobile is exposed to industria l fumes, co rrosive road salt,
m ud dy dog fee t, e tc. A well c ared for Audi can look like new many
years after p urchase . Regular and correct care will contribute to
m aint aining the bea uty and val ue of your Audi.
Furthermore, good care may be a condition for substantiating a
warranty claim should corrosion damage or paint defects occur.
Y ou r au thor ized Audi d eale r h as a var iety of dedicated vehicle-care
products
and can advise w hich ones to use for clea ning the exterior
a n d inter io r of your ve hicle.
W het her you use products recommended by Aud i or o ther comme r­
cia lly availab le cleaning agents , please ma ke sure yo u appl y them
co rrectly .
& WARNING
• Cleaning agents may be poisonous . Keep them out of the reach
of children.
• Heed all caution labels .
• Always read directions on the container before using any
product. Follow the directions carefully.
• Most chemical cleaners are concentrated and have to be
diluted .
• Use spot removing fluids only in well ventilated areas.
• Do not use gasoline, kero sene , diesel fuel , nail polish remover
or other volatile fluids . They may be toxic, flammable or
hazardous in other ways. Do not wash, wax or dry the vehicle with
the ignition on or the engine running.
& WARNING (co ntinued)
• Do not clean the under sides of chassi s, fenders , wheel covers,
etc. without protecting your hands and arms. You may cut your­
self on sharp-edged metal parts.
• Moisture and ice on brakes may impair braking efficiency
~ page 254, "General information ". Test the brakes carefully
each time you wash the vehicle .
'£> For the sake of the environment
Select only envir onmenta lly fr iendly clea ning produc ts . Leftover
cleaning pro ducts sho uld not dis posed of i n the household waste .•
Care of exterior
Washing
F re qu ent w ashin g protec ts th e vehicl e.
T he best protection aga inst env ironmental influences is frequent
w ashi ng and w ax ing. How o ften t his is requ ired depen ds on:
• How m uch the vehicle is use d
• Whe re the ve hicle is parke d (gar age, in the o pen un der tr ees, e tc.)
• The seasona l and weather conditions
• E nviron mental influences
T he longer bi rd droppings , insects , tree resin, road and industria l
gr ime, t ar, soo t, road sa lt and o ther ma ter ia ls remain on the veh icle
body, the more lasti ng their destructive effects w ill be. H igh temper­
atu res cause d by ex pos ure to intense s unlight int ensify the co rrosive
effect, part icu larly when humid ity is high as we ll.
~

Fuel supply and filling your fuel tank
Fuel supply and filling your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environment clean and
prevents engine damage .
Fuel recommendation
The fuel recommended for your vehicle is unleaded premium grade
g asoline . See also :::>
page 360, "D ata ". Aud i recommends using TO P
TIER Detergent Gasoline with a minimum octane ra ting of 91 AKI (95
R O N). For more information on TOP TIE R Detergen t Gasoline, please
go to the official website (www. toptiergas .com) .
Th e recommended gasoline octane rating for your engine can also be
found on a labe l located on the ins ide of t he fue l fille r flap. This rating
may be specified as AKI or RON .
Your vehicle may also be ope rated us ing unleaded reg ular gasoline
with a minim um octane rating of 87 AKI/91 RON. However, us ing 87
AKI/91 RON octane fuel will slig htly reduce engine performance.
Use un leaded ga soline only. U nleaded gaso line is available
throughout the USA, Canada, and in most E uropean co untries. We
recommen d that you do not ta ke your veh icle to areas or co unt ries
where unleaded gasoline may not be available.
F or more in formation on re fueling yo ur vehicle, see:::>
page 284 .
Octane rating
Octane r ati ng indi cat es a gaso line's abi lity to resis t engi ne damag ing
"knock" caused by premature ignition and detonat ion. Therefore,
buying the correc t g rade o f gasol ine is very impo rtan t to help preve nt
possible engine damage and a loss of engine performance .
Gaso line most common ly used in the United States and Canada has
the following octa ne rat ings tha t ca n usually be fou nd on the filler
pump :
Safety first
• Premium Grade: 91 - 96 AKI
• Regular Grade: 87 - 90 AKI
Explanation of t he abb reviations :
AKI= Anti Knock Index= (R +M)/2 = (RON+ MON)/2
RO N= Research Octane Number
M ON= M otor Octane Num ber.
0 Note
• Do not use any fue l with octane rat ings lower than 87 AKI o r 91
RO N otherwise expens ive engine damage will occ ur.
• Do
not use leaded gasoline. The use of lea ded gasoline w ill
severely damage your veh icle 's cata lytic converter and its abi lity to
cont rol exhaust emissions .•
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl
tertiary butyl ether)
Yo u may use unleaded gasoline blended w ith alcoho l or MTBE
( c ommon ly referred to as oxygenates) if the blended mix ture meets
the following criteria:
Blend of ga soline methanol (wood alcohol or methyl alcohol)
• Anti -k nock index m ust be 87 AKI or h igher .
• Bl end must con tain no mo re t han 3% methanol.
• Blend must contain more than 2% co-solvents.
Blend of ga soline and ethanol (grain alcohol or ethyl alcohol)
• Anti-knock index must be 87 AKI o r higher.
• Bl end must no t contain more th an 10% ethanol.
Vehicle care Technical data

Fuel supply and filling your fuel tank
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 fo r
winter or summer driving. During seasonal change-over, we suggest
that you fill up at busy gas stat ions where the seasonal adjustment is
more likely to be made in time.
0 Note
• Methano l fuels which do not meet these requirements may cause
corrosion and damage to plastic and rubber components in the fue l
system .
• Do not use fuels that fail to meet the specified criteria in this
chapter .
• If you are unab le to determine whether or not a particu lar fuel
blend meets the spec ifications, ask your serv ice 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 Aud i and are not covered under the New Vehicle or the Em is­
sion Control System Warranties.
• If you experience a loss of fuel economy or driveab ility and perfor­
mance 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 gaso line g rades contain
substances that can cause deposits to collect on v ital engine parts,
such as fuel injectors and intake valves. A lthough most gasoline
brands include additives to keep eng ine 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 officia l
webs ite (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build-ups can rob your engine of peak performance.
0 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 287.
You can find the fue l tank capacity of your vehicle in Technical Data
~page 360.
The label on the inside of the fuel filler flap tells you the correct fuel
for your ve hicle. For more information about fuel specifications, see
~page 283.
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 wh ile you refuel your veh icle . ..,_