..... N
r-N "': ..... \!) 1.1'1
N 1.1'1 .....
Fuel supply and filling
your f uel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environment
clean and prevents engine damage.
Fuel recommendation
The fuel recommended for you r vehicle is unlead
e d premium
g rade gasoline . See also . Audi rec
ommends using TOP T IER Detergent Gasolin e
w ith a m inimum oc tane ra ting of 91 A KI (9 5
RO N). Fo r more informa tion on TOP TIER Dete r
gent Gasoline, p lease go to the off icia l webs ite
(www .toptiergas .com) .
The re commended gasoline octane rating for
your eng ine can also be fo und o n a label loca ted
on the inside of the fue l filler flap . This rating
may be specified as AKI or RON.
Your veh icle may also be operated using unlead
ed reg ular gaso li ne wi th a minim um oct ane r at
ing of
8 7 AKI/9 1 RON . Howeve r, usi ng 87 AK I/91
RON octane fue l will s light ly red uce eng ine per
forma nce .
Use unleaded gasoline only. Unleaded g asoline
is availab le t hro ugho ut the USA, C anada, and in
most E uropean countries . We recommend that
you do not ta ke yo ur vehicle to areas or countr ies
where unleaded gasoline may not be ava ilab le.
F or mo re in forma tion on refue ling your ve hicle,
see
r:¢, page 152.
Octane rating
Octa ne rating ind icates a gaso line's ability to re
sis t engine damaging " knock" cause d by prema
ture ign ition and de ton ation. There fore, buyi ng
the co rrec t grade of gasoline is very important to
h e lp p revent possib le eng ine damage and a loss
of eng ine performance .
Ga soline mos t commo nly used i n the Uni ted
S tates an d Canada has the following octane rat
i ngs that can usually be fo und on the filler pump:
- P rem ium G rade : 91 - 96 A KI
Fuel suppl y and filling your fuel tank
-Regular Grade: 8 7 -90 AKI
E xpla nation of the abb revia tions:
AKI =
Anti Knock Index = (R +M)/2 = (RON+MON)/
2
RON= Research Octane Number
M ON = M oto r O ctane Num ber.
(D Note
- D o no t use any f ue l w ith oc tane ra ti ng s low
er th a n 8 7 AKI or 91 RON othe rw ise expe n
s ive engine damage w ill occur .
- D o
not use le ade d gas olin e! The use of lead
ed gasoline will seve rely damage your ve hi
cle's cataly tic conver ter an d it s a bili ty to
cont ro l exha ust em issions.
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl tertiary butyl ethe r)
You may use unleaded gasoline blended with a l
co hol o r MTBE (commonly referred to as oxygen
ates) if th e b le nded mixtu re mee ts the following
c riter ia :
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
- Anti -knoc k index must be 87 AKI or higher.
- Blend must contain no more t han 3% metha-
nol.
- Blend mus t contain more than 2% co -solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
- Anti-knoc k index mus t be 87 AKI or higher .
- Blend must not co nta in mo re than 10% etha-
nol.
Blend of gasoline and MTBE
- Anti -kno ck index mus t be 8 7 AKI or higher.
- Blend mus t contain no t mo re th an 1 5% M TBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perfo rm es
pecially well for w inter or s ummer dr iv ing . D ur-
i ng seasonal cha nge-over, we suggest that you .,,.
151
.... N
l'
N "1: .... I.O
"' N
"' ....
(D Note
Never drive yo ur vehicle unti l the fuel tank is
completely dry . The irregular supp ly of fuel
can cause misfir ing. Gasoline co uld enter into
the exhaust system and damage the catalyt ic
converter .
Refueling
F ig. 12 8 Drive r's door: Unlocking f uel filler f lap
F ig . 129 Fu el cap hooke d on th e opene d fu el fil ler fla p
When adding fuel, the ignition and any cellular
phones in the vehicle must be sw itched
off .
Taking the fuel cap off
.. To open the fuel filler flap, press the button
¢ fig. 128 .
.. Unscrew fuel filler cap counte r-clockwise and
hang it on the fuel filler flap
¢ fig. 129.
Refueling procedure
.. Inse rt the fue l nozz le from the gasoline pump
into the fuel filler neck as far as it will go .
.. Se lect a medium refueling rate so that the noz
z le switches off automat ica lly when the tank is
full.
Fuel supply and filling your fuel tank
Putting the fuel cap back on
.,. After f illing your tank, twis t the fuel filler cap
clockw ise unti l yo u hear a definite cl ick .
.. Close the fue l filler flap.
T o avoid fuel spill ing o r evapora ting from the fuel
tank always close fue l filler cap properly and
complete ly . An improper ly closed f uel filler cap
may also cause the MIL lamp ¢
page 26 to come
on.
A WARNING
--Improper refue ling or handling of fuel can
cause fire, explosion and severe burns.
- Fue l is highly flammable and can cause se
vere burns and other injur ies.
- Fa ilure to shut the engine off while re fuel
ing and/or to insert the pump nozzle fully
into the fue l filler neck cou ld cause fuel to
spray out of filler neck or to overflow. Fue l
sp ray an d overflowing fue l can ca use a fire.
- Never use a ce llular telepho ne while refuel
ing . T he elec tromagnetic radiation can
cause sparks that can ignite fuel vapo rs and
cau se a fire .
- Never get back into yo ur vehicle wh ile refu
e ling . If in except iona l circumst ances you
m ust get ba ck in yo ur vehicle whi le refuel
i n g, make cert ain that yo u close the doo r
a nd tou ch me tal to disch arge st atic electric
ity before touch ing the filler nozzle aga in.
Static elect ricity ca n cause s parks that can
ignite fue l vapors re leased d uring refueling.
- Never smoke o r have an open f lame any
where in or near your veh icle w hen refueling
or fi lling a portab le fue l conta iner.
- For your safety, we strongly recomme nd
that you do not travel with a portable f uel
container in your veh icle. The container, f ull
or empty may leak and cou ld cause a f ire,
especia lly in a cras h .
- If, under exceptional c ircumstances, you
must t ransport a po rtab le fuel conta iner,
p lease observe t he follow ing :
- Never fill a por table fuel co ntainer while it
is anywhere in or on the veh icle (for exam -
p le, in the l uggage compa rtme nt, or on ..,.
153