AUDI A8 2013 Owners Manual

headlight washer system (night vis ion as ­
sist*) .
If the area is heavily soi led, you can
clean it with glass clean ing agent and a soft,
dry cloth.
(D Note
- If you wash your vehicle with a pressure
washer,
- make sure there is enough d istance to
sensors in the rear bumper .
- do not clean the camera lenses and the area around them with the pressure
washer.
- Never use warm or hot water to remove
snow or ice from the camera lens . Th is
could cause the lens to c rac k.
- Neve r clean the came ra lens w it h abra­
s ive p roducts.
Waxing and Polishing
Waxing
A good wax coat ing protects the ve hicle pa int
to a large extent aga inst the environmen tal
factors listed under
r::o page 215, Washing and
even against slight scratches .
You can use a liquid ca r wax to p rotect your
pa int as soo n as o ne week after your veh icle
h as been de livered .
Even if you regular ly use a
waxing process in
automatic ca r washes, we recommend t hat
you ma nually app ly a coat of wax to give the
pa int extra protec tion , particula rly if wate r no
l onge r beads on the clean paint .
P rotect p lastic body pa rts with ca r wax i n the
same way as the vehicle body.
During warm weather dead insects tend to
collect on the front bumper and on the for­
ward area of the hood . They a re much easier
to remove from pai nt tha t is waxed
often.
Polishing
Poli sh your vehicle only if the pa int has lost its
shine and the gloss cannot be brought back
with wax .
Cleaning and protec tion 219
If the po lish used does not contain p reserva­
tive compounds, the paint must be waxed af­
terwards.
_& WARNING
A lways read and heed all WARNINGS and
other information
r::opage 215 .
([) Note
Do not use car wax on
- matte or anodized meta l trim
- ru bber or ru bber- lik e t rim.
Trim strips
Metal trim needs special care.
For environmental reasons, Audi fabric ates
the bright t rim strips and trim p ieces from
pure chromium-free al uminum .
Dirt and marks on the trim strips shou ld be
removed w ith a
pH-balanced cleaning agent
(do not use a chrome cleane r) . Aud i dealers
carry clean ing produc ts which have been test­
ed fo r use on your vehicle and are not ha rmfu l
to the environment.
T o avoid co rrosion on the exter ior trim st rips,
o nly a pH-ba lanced solu tion should be used
for the windsh ield washer.
_& WARNING
A lways read and heed all WARN INGS and
o ther in formation
r::o page 215 .
Plastic and vinyl
Plastic needs special care.
Use a clean , damp cloth or sponge to remove
dust and light s urface di rt . For other soil, use
a lukewa rm all-p urpose cleaning so lution or a
mild saddle soap for v inyl tr im . Remove wate r
spots and traces of soa p wi th a cle an, d amp
clo th or sponge. Use a clean, so ft cloth to rub
dry .
G rease , ta r or oil stains can be removed w it h a
cl ea n clot h or sponge soake d wit h all- purpose .,.
•
•

220 Cleaning and protec tio n
cleaner or with a solvent designed especially
to clean viny l.
Occasionally apply a colo rless v inyl or leather
preservat ive to reta in the material's l uste r
and p liability .
A WARNING
Always read and heed a ll WARNINGS and
other information
Q page 215.
Aluminum trim
Use only n eutr al- pH products to remove spots
and depos its from aluminum surfaces.
Chrome care products and alkaline cleaners
will attack alum inum surfaces and can dam ­
age them over time .
A WARNING
Always read and heed a ll WARNINGS and
other information
Q page 215.
Touch -up paint
Minor paint damages should be touched up
immediately .
.. Use either a touch-up pa int stick or spray
paint to cove r minor scratches and nicks .
Your Audi dealer has touch-up paint for minor scra tches and stone chips. Scratches should
be touched up soon after they occur to pre­
vent corrosion .
If a spot starts to rust, however, a simple
touch-up job w ill not be enough. The affected
surface must be sanded smooth and coated
with an anti-rust pr imer befo re the pa inted
finish ca n be restored .
The number for the original vehicle paint can be found on the vehicle ident ificat ion label
Q page 290 .
A WARNING
Always read and heed a ll WARNINGS and
other information
Qpage 215.
Windows
Clear vision to all sides .
Clean all windows regula rly to remove road
film and car wash wax buildup.
.. Remove snow from w indows us ing a brush.
.. Use a plastic ice sc raper to remove ice from
w indows and mirrors.
.. Remove other residue on the windows with
a spray-on g lass cleaner .
.. Wipe the windows dry with a clean piece of
cloth or kitchen paper towel.
The best way to remove snow from windows and mirrors is to use a brush . Use a non-abra ­
s ive
plastic ic e scrape r -better st ill, a spray
deicer - to remove
ice from w indows and m ir­
ro rs.
Oil , grease or s ilicone residue can be removed
with
gla ss cleaner or silicon e remover . How­
ever, wax res idue requires the use of a spec ial­
ly formula ted so lve nt. Please contact your
A udi dealer for adv ice on safe products for
wax removal.
Windows should also be cleaned on the inside at regu la r i nte rvals .
Never dry windows with the same chamo is
that you use to dry pai nted surfaces. Wax resi­
due on the chamois can impa ir v is ion through
t h e windows.
A WARNING
- Always re ad and heed a ll WAR NINGS and
other info rmation
Q page 215.
- The windsh ield must no t be treated w ith
water-repellen t materials. They can in­
crease glare unde r poo r vis ibility condi ­
tions such as wetness, darkness, or when
the sun is low on the horizon . In addi­
tion, they can cause the w indshield w ip­
ers to chatter.
(D Note
- Never use warm or hot water to remove
snow and ice from windows and mirrors .
Th is could cause the glass to crack. ..,_

-To prevent damage to the wi res of the
rear defogger, do not place any adhesive
stickers on the inside of the rear window
over the wires.
- To he lp prevent dirt from scratching the
window, always scrape in a forward di­
rection - pushing the scraper away from
you - never back and forth .
Cast (light) alloy wheels
Cast (light) alloy wheels require special care.
~ Wash the wheels with a sponge or hose
brush every other week.
~ For deep cle aning afterwa rds, use only a
dedica ted
acid -free cast alloy wheel cleaner.
~ Rub a coa t of liquid wax on to the r ims every
three month . Be sure to reach and treat all
parts of the rim .
To preserve the decorat ive appearance of the
cast alloy wheels , some special care is neces ­
sary . In add it ion to road dirt and salt , brake
dust is also corros ive. If left on for too long,
b rake dust can cause pi tting.
Use only specia l
acid-free cleaners formulated
for alloy rims. Safe products are available at
your Aud i deale r. Never leave the cleaner on
the r ims longe r than spec ified on the label. If
n o t rinsed off promptly , the acid co nta ined in
some cleaners can attack the th reads on the
wheel bo lts .
Never use abras ive or metal polishing clean­
in g agents. If the prote ctive coat ing has been
chipped, e .g. by k icked up road d irt, touch it
up as soon as possib le .
A WARNING
- Moist ure and ice on brakes may affect
braking efficiency
i:> page 200, General
information.
Test the brakes carefully
each time you wash the vehicle .
- Always read and heed all WARNINGS and other information
c> page 215.
Cleaning and protec tion 221
Body cavity sealing
The body cavity sealing does not need to be
checked .
All body cav ities which could be affected by
corros io n have been thoroughly protected at
the factory .
This sealing does not require any inspection or additional treatmen t. If any wax should seep
out of the cavi ty when the ambie nt tempera­
ture is high, it can be removed with a p lastic
scraper and a su itable solvent .
A WARNING
Solvents can be dangero us.
- Benz ine is flammab le and toxic. If you
use benz ine fo r removing the wax , keep
sparks, flame and lig hted cigarettes
away. Never d ump ben zine on the
grou nd, into open streams or down sew­
age drains .
- Be s ure to obse rve a ll safe ty and environ­
men tal reg ulations. Fo llow all instruc­
tions on the container.
- Always read and heed a ll WAR NIN GS and
o ther information ¢
page 215.
Chassis
Have the undercoating checked for damage
from time to time.
The lower body shell of your Aud i is also thor­
oughly p rotec ted against cor ros io n.
Any damage to the undercoat ing caused by
road hazards should be repaired promptly .
A WARNING
Too much undercoating in the wrong pla­
ces can cause a fire.
- Do not apply additional undercoating or
rustp roofing on or nea r the exhaust
manifold, exhaust pipes, catalyti c con­
ver ter or he at shields. While driving, the
substance used fo r undercoating co uld
overheat and cause a fire.
•
•

222 Cleaning and protec tio n
-Always read and heed all WARNINGS and
other information ¢
page 215.
Exhaust tail pipes
Road salt and other corrosive materials will
damage the material in the exhaust tail pipes
if they are not cleaned regularly . Do not clean
the tail p ipes with wheel cleaner, paint pol ish,
chrome po lish or other abrasive cleaners.
C lean the tail p ipes with car ca re p roducts
that are su itable for stain less stee l.
Your author ized Audi dealer can provide clean­
ing p roducts that have been tested and ap­
p roved fo r you r vehicle.
Care of interior
Infotainment components
The MMI/RSE* display may be cleaned with a
soft cloth and commercially-ava ilable "LCD
cleaner" . The cloth should be coated lightly
when the clean ing solution when cleaning the
d isplay.
The MMI/RSE* contro ls must be cleaned first
with a brush so t hat dirt does not ente r the
un it or enter between the buttons and the
housing. Then wiping the controls with a cloth
dampened with dish detergent and water is recommended.
CJ) Note
To prevent sc ratches, only clean the dis­
play when it is d ry.
- To prevent damage, ma ke sure fluids do
not enter the controls.
Aluminum trim
Use only n eutral-pH products to remove spots
and deposits from aluminum surfaces.
Chrome ca re products and alkaline cleaners
will attack aluminum s urfaces and can dam­
age them over time.
A WARNING
A lways read and heed all WARNINGS and
other information¢
page 215.
Fabrics and fabric coverings
Fabrics and fabric cover ings (e .g. seats, door
trim panels, etc.) should be cleaned at regular i ntervals w ith a vacuum cleaner. This removes
su rface di rt particles which could become em ­
bedded in the fabric through use. Steam
cleaners should not be used, because the
steam tends to p ush the dirt deeper into the
fabric and lock it there.
Normal clean ing
Generally, we recommend using a soft sponge
o r a lint-free microfiber cloth to the clean fab­
ric. Brushes shou ld only be used for carpets
and floor mats, since other fabric surfaces
could be harmed by brushes.
Norma l su rface stains can be cleaned using a
commercially available foam cleaner . Spread
the foam on the s urface of the fabric with a
soft sponge and work it in gently. Do not satu­
rate the fabric. Then pat the foam dry using
absorbent, dry cloths (e.g. m icrof iber cloth)
and vacuum it after it has dried completely.
Cle anin g sta ins
Stains caused by beverages (e .g. coffee, fruit
juice, etc.) can be treated with a mild deter­
gent solution. Apply the detergent solution
with a sponge. In the case of stubborn stains, a detergent paste can be applied directly to
the stain and worked into the fabric. After­
wards, use copious amounts of clean water to
remove the rema in ing deterge nt. Apply the
water wit h a damp clo th or sponge and pat
the fabric dry with an abso rbent, dry cloth .
Stains from choco late or makeup should have
detergent paste (e.g. ox-gall soap) rubbed in­
to them. Afterwa rds, remove the soap with
water (damp sponge) .
Alcohol can be used to treat stains from grease, o il, lipstick or a ballpoin t pen . Melted ..,.

grease or dye must be patted off using ab­
sorbent material. It may be necessary to re­
treat the areas with detergent paste and wa­
ter.
In the case of general soiling of the uphols­
tery and cover material, we recommend hiring
a specialist that has the equipment to clean
the seat covers and other fabric surfaces by
shampooing and spray extraction.
A WARNING
Always read and heed all WARNINGS and
the information
Qpage 215.
Open Velcro fasteners on your clothing can
damage the seat cover. Please make sure
that Velcro fasteners are closed.
Plastic parts and instrument panel
Always use a clean cloth moistened in clear
water to clean these areas. For persistent dirt
use an Audi approved
solvent-free plastic
cleaner/protectant.
A WARNING
Solvents can change the properties of
some plastics and make it harde r for the
airbag to deploy.
- Never clean the instrument panel or the
surface of airbag modules with cleaning
products that contain solvents.
- Products containing solvents will make
the surface of this part porous.
- Serious injuries can result if plastic parts
come loose when the airbag is deployed.
- Always read and heed all WARNINGS and other information~
page 215.
(D Note
Cleaning agents containing solvents will
attack the material and can change the
way it behaves.
Cleaning and protection 223
Trim and molding
Trim and molding in the vehicle interior can
be cleaned with a dry microfiber cloth. To pre­
vent scratches, do not use any cleaning solu­
tions.
Natural leather
Appl ies to vehicles: with natural leather
Audi makes great efforts to maintain the
properties, natural look and feel of interior
leather.
General
We offer many different types of leathe r on
our vehicles. Most are different types of nappa l eather, which has a smooth surface and
comes in various colors.
Th e intensity of the color determines the visu­
al characteristics and appearance. If the sur­
face of the leather has a typical natural look,
then the leather is a nap pa leather that has
been left in a relatively natural condition. This
leather offers particularly good comfort and
breathes well. Fine veins, closed grains, insect
bites, skin folds, and subt le variations in color
remain visible. These characteristics demon­
strate that the material is natural.
Natural nappa leather is not covered by a col­
or finish. It is therefore more sensit ive to soil­
ing and wear, which is something you need to
consider if children, animals or other factors
might prove to be particularly hard on the
leather .
By contrast, leather types that are covered by
a colored finish layer are more durable. This
has a positive effect on the leather 's resist­
ance to wear and soiling in daily use. On the
other hand, the typical characteristics of natu­
ral leather are barely or not apparent. Howev­
er, this does not mean that the leather itself
is of inferior quality. •
•

224 Cleaning and protection
Car e and handling
Because of the exclusive nat ure of the types of
l eather that Audi uses and their unique prop ­
erties (such as sensitivity to oils, grease, soi l­
ing, etc.), you will need to be somewhat care­
fu l w ith these leathers, and a certain type of
care is required. For examp le, dark clot hing
materials can d iscolor leather seats (especial­
ly if such cloth ing is damp and was not dyed
correctly). Dust and dirt part icles in pores,
fo lds, and seams can have an ab ras ive effect
and can damage the leather s urface as well as
weaken seams.
The leather should be cleaned regularly as
n eeded. After having been used for a re latively
l ong t ime, yo ur leather sea ts will acqui re a
rich aged finish. This is a charac teris tic of nat ­
ura l leather and a sign o f true quality .
I n o rder to maintain t he va lue of t his natura l
p rod uct over the life of yo ur vehicle, you
should follow the recommendations below :
(D Note
-To keep you r leather from bleaching out,
do not a llow it to be exposed to br ight
sunl igh t for long periods of time. If you
have to leave the vehicle parked o utside
for long periods, cover the leather to
protect it from d irect exposure to sun­
li ght.
- Sharp objects on clothing, such as zip­
pers, rivets or sharp pieces on be lts can
l eave permanent scratches or scrape
marks on the surface of the leather.
- After each t ime you clean the leather and
at regu lar intervals, use a leather preser­
vat ive creme that conta ins UV-blockers
and that works into the leather. This
creme wi ll nourish and moistur ize the
l eathe r, helping it to b reath e and stay
supple.
It also helps to b uild up a prote c­
tive coat ing on the s urfa ce.
- Clean t he leather every 2 -3 mont hs,
and clean any areas that ge t soiled. - Remove
fresh marks made by ballpo int
pens, ink, lipstick, shoe polish, etc. as
soon as poss ible.
- Preserve the color of the leather as need­
ed by using a specia l co lored leather care
creme to touch up areas of uneven color.
Cleaning and caring for leather
upholstery and trim
Applies to vehicles: with natural leather
Natural leather requires special care and a t­
tention .
Normal cleaning
.. Clean soiled areas with a slightly moistened
cotton or woo len cloth .
More stubborn dirt
.. More s tubbor n dirt can be removed using a
clo th sa turated wi th a mild so ap solut ion (2
tablespoons mild liquid soap).
.. Never allow the soap sol ution to saturate
the leather, and make certain that no water
s oak s into the seam s.
.. Wipe off the soap so lution with a soft, dry
cloth .
Cleanin g spot s
.. Remove fresh water-based spots (s uch as
coffee, tea, juices, blood) with an absorbent
cloth or paper towel.
.. Remove fresh
grease or oil -based spots
(such as butte r, mayonnaise, chocolate) with
an absorbent clot h or paper towel, or use
the cleaner from the leather care kit if the
s po t h as no t yet penet rated i nto t he surface
of the leathe r .
.. Use an oil/grease d issolving spray, i f
oil/
grease spot s ha ve dr ied on.
.. Remove specific k inds of spots (ballpoint
pen, fe lt marker, fingerna il polish, water­
based pa int, shoe po lish, etc.) with a spot
remover specifically formu lated for lea ther.
L e ather care
.. Every half year use an approved leather care
product (available from your Audi dealer) to
care for the leather . .,.

~ Apply the product very sparing ly .
~ Wipe it off with a damp cloth.
If you have any questions abo ut cleaning and
caring for the leather in your vehicle, it is best
to contact your authorized Audi dealer, who
will be glad to help you and tell you about our
fu ll range of leather care products, such as:
- Leather cleaning and care kit
- Creams to care for colored leathe r
- Spot removers for ballpo int pens, shoe pol-
ish , etc.
- Oil/grease dissolv ing spray
- New and upcoming products.
A WARNING
Always read and heed all WARNINGS and other information
~ page 215.
CD Note
- Never use chemical solvents (e.g. lighter
flu id, turpentine), waxes, shoe polis h or
s imilar products on the leather surfaces
i n your Audi.
- To avoid damage, have stubborn stains removed by a commerc ial cleani ng spe­
cia list .
Cleaning Alcantara ® (synthetic suede)
Appl ies to vehicles : wit h Alcantara upholstery
Removing dust and dirt
~ Moisten a cloth, squeeze out excess water
and wipe down the se at su rfaces .
Removing stains
~ Moisten a cloth w ith lukewarm water or
with diluted ethyl (rubb ing) alcohol.
~ Dab at the stain. Start at the outside and
work inwa rds.
~ Once the s tain is no longer visib le, use a
soft d ry cloth or t issue to soak up the mois ­
tu re .
D o not use leather cleaning produc ts on Al­
cantara.
You may use a suitable shampoo fo r removing
dust and dirt.
Cleaning and protec tion 225
D ust and gr it in the po res and seams can
scratch and damage th e surface. If the car is
l eft stand ing in the sun for long per iods, the
A lcantar a cover s should be protected aga inst
direct sunlight to prevent it from fad ing.
Slight co lor variations will develop in normal
use a nd are not an indication of mate rial dete­
rioration .
CD Note
- Never use chemical so lvents (e.g . lighter
fluid, tu rpenti ne), waxes, shoe polish or
simi lar p roducts on A lcantara ® surfaces .
- T o avoid damage, have stubborn sta ins
removed by a comme rcial clean ing spe­
cialist.
- Do not use b rushes, stiff sponges or sim­
ilarly abrasive cleani ng a ids.
Safety belts
Only well -maintained safety belts work relia ­
bly when needed .
~ Keep belts clean.
~ For cleaning, use a mild soap a nd wate r so l­
ution . Let belts dry thorough ly and away
from d irect sunlight .
~ Do not allow i nertia ree l safety belts to re­
tract before they are comp letely dry.
~ Check t he condition of your safety belts reg­
ularly .
Heavi ly so iled safety be lts may not ret ra ct
properly.
A WARNING ~
D amaged safety belts can break in a crash .
- Anyth ing th at m ight damage yo ur safety
be lts could mean tha t you and your pas ­
sengers would not be adequate ly pro­
tected in an accident.
- Safety belt performance depends on cor ­
rect insta llation . Never remove be lts
from the vehicle to clean them.
- Do not use chemical cleaning agents,
b leach or dyes. They have corrosive prop­
erties which weaken the webb ing .
•
•

226 Cleaning and protec tio n
-When cleaning your safety belts, inspect
them for damage.
If you discover dam­
age, see your Audi dealer .
- Always read and heed all WARNINGS and
other information
¢ page 215.
Cooler
Applies to vehicles: with cooler
A layer of ice or frost in the cooler interferes
with its cooling performance.
Cl ean ing
The refr igerator sho uld be cleaned regularly.
.. Wash the cooler w ith lukewarm water and a
mild cleaning solut ion, if necessary .
.. The n wipe the cooler dry.
.. Dust and dirt will accumu late near the ven­
t il ation openings in the luggage compar t­
ment due to normal cooler usage. This
should be cleaned regularly.
Defrost ing
.. Swi tch the cooler off¢ page 75.
.. Remove any food or beve rages and al low
the cooler to defrost with the door open .
.. Wipe the inside of the cooler dry and clean
the cooler , if necessary .
Defrost the cooler if yo u will not be using it
for extended periods of time .
@ Note
-Do not try to speed up the defrost ing
process by applying heat.
- To reduce the risk of personal injury or
damage to the refrigera to r,
- do not use any abrasive cleaners, sol­
vents, wax, aggressive cleaning solu­
tions, so lutions with strong fragrances,
etc.,
- do not clean the coo ler with cleaning
tools such as stee l wool.
1l Use o nly th e co rrect cle anin g so lu ti on s. Never use gas­
o lin e or d ie se l fu el.
Engine compartment
Be especially careful when cleaning the en­
gine compartment.
Always switch off the ign it ion before cle an­
i ng th e eng in e¢ .&. .
Plenum panel
Remove leaves from the plenum panel i n front
of the windshield under the engine compart­
ment. This prevents the water drain holes
from becoming b locked, and it prevents de­
bris from entering the vehicle interior through
the heat ing and ventilat ion ducts .
Corrosi on protect ion
The engine compartment and transmission
have been corrosion-protected at the factory .
Good anti-corrosion treatment is very impor ­
tant, partic ularly in the winter.
If the vehicle
is frequently driven on salt treated roads, the
entire engine compartment and plenum panel
shou ld be thoroughly cleaned at the end of
winter and retreated to prevent salt damage .
At the same time, the underside of t he veh icle
shou ld be washed as well.
If the engine compartment is cleaned at any
time with grease remov ing solutions
1>, or if
you have the engine washed, the anti-corro­
s ion treatment is almost a lways removed as
well . It is therefo re esse ntia l to have a lo ng­
lasti ng corrosion pro te ct ion reapplied to all
surfaces, seams, joints and components in the
engine compartment .
A WARNING
Be aware: The engine compartment of any
motor vehicle is a potentially hazardous
area.
- Before working in the engine compart­
ment, be sure to read the information
¢page 232.

-Before reaching into the front pane l, al­
ways switch off the ignition. Otherwise,
the windsh ield wiper system could un in­
tent ionally be switched on, possib ly
caus ing personal injury from the moving
wiper linkage .
- Never reach into the area around or
touch the radiator fan. The auxiliary fan is temperature controlled and can switch
on suddenly- even when the ign it ion is
off.
- Do not wash, wax or dry the engine w ith
the engine running. Moving or hot pa rts
cou ld inju re you .
- Do not clean the underside of the chas­
sis, fenders, wheel cove rs, or other hard
to reach parts w ithout protecting your
hands and arms . You may cut yourse lf on
sharp-edged metal parts.
- Always read and heed all WARNI NGS and
other information ~page
215 .
Cleaning and protec tion 22 7
•
•

228 Fuel supply and filling your fuel tank
Fuel supply and filling
your fuel tank
Gasoline
Fuel supply
Using the righ t fuel helps keep the environ­
ment cle an and preven ts engine dam age .
Fuel recommendation
The fuel recomme nded for you r vehicle is un­
lead ed premium
g rade gasoline . See a lso
¢
pag e 292, Doto . Audi recommends usi ng
T OP TIER D eterge nt Gaso line wi th a mini mu m
octa ne ra tin g of 9 1 AKI (95 RON). For more
in fo rmation on TO P TI ER De tergent Gaso line,
p lease go to the officia l webs ite (www.toptier ­
gas.com).
Th e re commended g asoline oct ane r ating for
your engine can a lso be fo und on a label loca t­
e d on the ins ide of the fue l filler flap . This rat ­
ing may be specified as A KI or RO N.
Your veh icle m ay also be oper ated using un­
l ea ded regular g asoline with a min imum o c­
tane rating of 87 AKI/91 R ON. However, using
87 AKI/91 RON octa ne f ue l w ill slightly re ­
d uce eng ine perfo rmance.
Use unleaded gasoline only. Unleaded g aso­
line is availab le th rou gho ut the USA, Canada ,
and in most E uropean countries . We recom­
mend that you do not ta ke yo ur vehicle t o
areas or countries where unleaded gasoline
may not be ava ilable.
F or mo re in format io n on refue ling your ve hi­
cle, see¢
page 229.
Octane rating
Octa ne r ating in dicates a gaso line's abili ty to
res ist engine damagin g "knoc k" ca used by
p remature ign ition and detonation. Therefore,
buy ing the correct grade of gaso line is very
important to help prevent possible engine
damage and a loss of engine performance.
Gasoline most commonly used in the Unite d
States a nd Canada has the following octane r
at ings t hat can usu a lly be found on the fi ller
pump:
- Pre mium G ra de: 91 -9 6 A KI
- Regular Grade : 87 -90 AKI
Explanation of the abbreviations:
AKI = Anti K nock Index= (R+M) /2 = (RO N
+ MON)/2
R ON= Resea rch Octane Numb er
MON = Motor Octane Num ber .
(D Note
-Do not use a ny f ue l w it h octane rat ings
lower tha n 87 A KI or 9 1 RO N othe rwise
expensiv e engine damage w ill occur.
- Do
not use leaded gasoline . The use of
lead ed gasoline w ill severely damage
yo ur v ehicl e's catalytic co nve rter a nd its
ability to co ntrol exha ust e mission s.
Blended gasoline
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded g asoline blende d with
alcohol o r MTBE (commonly re ferred to as
oxygenates) if the blende d mixture meets t he
f o llow ing criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
- Anti -kno ck index mus t be 87 A KI or higher.
- Blend must contain no mor e than 3% me th-
anol.
- Blend must contain more than 2% co-sol-
ve nts .
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
- Anti -knoc k index must be 87 AKI or higher .
- Blend must not conta in mo re than 10%
ethanol.
Blend of ga soline and MTBE
- Anti-knoc k index must be 87 AKI or high er. ll-