2010 AUDI S8 fuel pump

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

In order to fill the tank properly while protecting the environment,
please follow this refueling procedure carefully.
& WARNING
Under normal operating conditions, never carry additional fuel
containers in your car. Gas canisters and other containers used to
transport fuel can be dangerous. Such containers, full or empty,
may leak and could cause a fire in a collision. If you must transport
fuel to use for your lawn mower, snow blower, etc., be very careful
and always observe local and state laws regarding the use, trans­
portation and storage of such fuel containers. Make certain the
container meets industry standards (ANSI /ASTM F852 -86).
0 Note
Never drive your vehicle until the fuel tank is completely empty . The
irregular supply of fuel can cause misfiring. Gasoline could enter the
exhaust system and damage the catalytic converter. •
Refuelling
The fuel filler flap is unlocked from a button in the
driver's door.
Fig . 235 Driver's
door: Unlock ing fuel
filler flap
Vehicle OP-eration
Fuel supply and filling your fuel tank
Fig. 236 Fuel cap
hooked on the opened
f uel filler flap
When adding fuel , the ignition and any cellular phones in the
vehicle must be switched
off.
Taking the fuel cap off
- To open the fuel filler flap, press the button~ fig. 235.
- Unscrew fuel filler cap counter-clockwise and hang it on
the fuel filler flap~ fig . 236.
Refuelling procedure
- Insert the fue l nozzle from the gasoline pump into the
fuel filler neck as far as it will go.
- Select a medium refuelling rate so that the nozzle
switches off automatically when the tank is full.
Putting the fuel cap back on
- After filling your tank, twist the fuel filler cap clockwise
until you hear a definite click .
- Close the fuel filler flap.
To avo id fuel spi lling or evaporating from the fuel tank always close
fuel filler cap properly and completely . An improperly closed fuel
filler cap may also cause the MIL lamp~
page 25 to come on. ._.
Vehicle care Do-it-yourselt service iTechnical data

Fuel supply and filling your fuel tank
in. WARNING
Improper refu eling or handling of fuel can cause fire , explosion
and sev ere burns .
• Fuel is highly flammable and can cause seve re burns and other
injuries .
• Failure to shut the engine off while refueling and /or to inse rt
the pump nozzle fully into the fuel fill er n eck could cau se fuel to
spray out of filler neck or to overflow. Fuel sp ray and overflowing
fue l can cau se a fire.
• Never u se a cellula r telephone while refueling. The electromag ­
netic radiation can cau se spark s that can ign ite fuel vapor s and
cause a fire.
• Never get back into your vehicle while refue ling . If in ex cep­
tional circumstances you must get back in your veh icle while refu ­
eling , make certain that you clo se th e door and touch metal to
discharge static electricity before touching the filler nozzle again .
Static electricity can cause sparks that can ignite fuel vapors
released during refueling.
• N ever smoke or have an open flame anywhere in or near your
vehicle when refueling or filling a portable fuel containe r.
• For your safety, we strongly recommend that you do not travel
with a portable fuel container in your vehicle. The containe r, full
or empty may leak and could cau se a fire, especially in a crash .
• If, under except ional circumstances , you must t ranspo rt a
portable fuel container, please ob serve the following:
- Never fill a portable fuel container while it is anywhere in or
on the vehicle (for example, in the luggage compartment, or
on the trunk ). Static electricity can bu ild up while filling and
can ignite fuel vapors causing a fire .
- Alway s place a portable fuel container on the ground before
fill ing.
- Alway s keep the filler nozzle completely inside the portable
container before and during fill ing.
& WARNING (c on tinued )
-If filling a portable container made of metal , the filler nozzle
must alway s be in contact with the container. This will help
prevent static electricity from dis charging and cause a fire .
- Never spill fuel inside the vehicle or luggage compartment .
Fuel vapor s are highly flammable.
- Always observe local and state /provincial laws regarding the
use , storage and transportation of fuel containers .
-Make certain the fuel container meets industry standards
(ANSI / ASTM F852-86).
0 Note
If any fuel has spilled onto the ca r, it should be remove d immed iate ly
t o prevent damage to t he pa int.
For the sake of the environment
As soo n as t he correct ly operated nozz le switches off automatically
for the first time, the tank is full. Do not try to add more fue l because
fue l may spill out . In addition, the expansion s pace in the fuel tank
w ill b e filled -causing the fue l to overflow when it becomes warm an d
poll ute the e nvironment .
(I] Tips
• Runn ing your e ngine while ref uellin g may cause vapo rs to escape
or even cause fuel to spill out of the tank . This wou ld then shut off the
fue l nozzle before the tank is f ull.
• Do not refuel your vehicle with the ignition turned on. The fuel
gauge may o therwise not ind icate the correc t fu el leve l after
refuell ing .•