Fuel Supply And Filling Your; Gasoline - Audi A3 2011 Owner's Manual

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
gasoline . See also :::> page 296, "Dat a". Audi recommends using TOP
TIER Detergent Gasoline with a minimum octane rat ing of 91 AKI (95
RON). For more information on TOP TIER Det ergen t Gasoline, please
go to the official website (www.topt iergas .com) .
The recommended gasoline octane rating for your engine can also be
found on a labe l located on the inside of t he fue l fille r flap. This rating
may be specified as AKI or RON .
Your vehicle may also be ope rated using unleaded reg ular gasoline
with a minim um octane rating of 87 AKI/91 RON. However, using 87
AKI/91 RON octane fuel will slig htly reduce engine performance.
Use unleaded ga soline only. Unleaded gaso line is available
throughout the USA, Canada, and in most European countries. We
recommen d t hat you do not t ake your veh icle to areas or count ries
where unleaded gasoline may not be available.
For more information on refueling your vehicle, see :::> page 221.
Octane rating
Octane rati ng indicat es a gaso line's abi lity to resis t engi ne damag ing
"knock" caused by premature ignition and detonat ion. Therefore,
buying t he correc t grade of gasol ine is very impo rt ant to help preve nt
possible engine damage and a loss of engine performance .
Gasoline most common ly used in the United States and Canada has
the following octa ne rat ings tha t can usually be fou nd on t he filler
pump :
Safety first
• Premium Grade: 91 - 96 AK I
• Regular Grade: 87 - 90 AKI
Explanation of t he abb reviations :
AKI= Anti Knock I ndex= (R+M)/2 = (RON+ MON)/2
RON = Research Octane Number
MON= Moto r Octane Num ber.
0
Note
• Do not use any fue l with octane rat ings lower than 87 AK I or 91
RON otherwise expens ive engine damage will occur.
• Do not use leade d gasoline! The use of leaded gaso line will
severely damage your vehicle's cata lytic converter and its abi lity to
cont rol exhaust em issions . •
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl
tertiary butyl ether)
You may use unleaded gasoline blended with alcoho l or MTBE
(common ly referred to as oxygenates) if the blended mixt ure meets
the following criteria:
Blend of ga soline methanol (wood alcohol or methyl alcohol)
• Anti-knock index must be 87 AKI or higher .
• Blend must cont ain no more t han 3% methanol.
• Blend must contain more than 2% co-solvents.
Blend of ga soline and ethanol (grain alcohol or ethyl alcohol)
• Ant i-knock index must be 87 AKI or higher.
• Blend must not contain more th an 10% ethanol.
Vehicle care Technical data