Maintenance And Care; Checking And Filling; Fuel - Audi R8 2017 Owner's Manual

Ch e ck ing and Filling
Checking and Filling
Fuel
Gasoline grade
The correct gasoline grade is stated on the inside
of the fuel filler door .
The vehicle is equipped with a catalytic converter
and must only be driven w ith unleaded gasoline .
Audi recommends using TOP TIER Detergent Gas-
oline. Additional information on TOP TIER Deter-
gent Gasoline can be found on the offic ial web-
site (www .toptiergas.com) .
The individua l gasoline grades are differentiated
by octane ratings . This value is given with (R+M)/
2 equating to AKI or in RON.
The follow ing headings match t he correspond ing
sticker in the fue l filler door.
UNLEADED FUEL ONLY MIN. (R+M) / 2 87
Regular / MIN. RON
91
Regular
Use regu la r gaso line with minim um 8 7 AKI/
91
RON
~ 0 .
The max imum eng ine powe r is only reached if
prem ium gaso line 91 AKI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN . (R
+M)/2
91 /
SUPER MIN. RON
95
Using premium gasoline with m inim um 91 AKI/
95 RON is recommende d .
If premium gasoline is not available, you can also
use reg ula r gaso line 87 AKI/ 91 RON. Howeve r
this does reduce t he e ngine powe r s light ly.
(D
Note
- Filling the t ank ju st one time with leaded
fuel or other meta llic additives will cause
permanent de t e riorat ion to the catalyt ic
conve rt er func t ion.
- Whe n gasol ine with an oc t ane rati ng that is
too low is used, high speeds or heavy engi ne
load can lead to engi ne da mage.
220
(D
Tips
The vehicle can be filled w it h fue l that has a
higher octane rating than what is requi red by
the eng ine.
Blended gasoline
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
You may use unleaded gasoline blended with al-
cohol o r MTBE (commonly referred to as oxygen-
ates) if t he blended m ixt ure meets t he fo llow ing
crit er ia:
Blend of gasoline methano l (wood alcohol or
methyl alcohol)
- Anti-knock index must be 87 AKI or higher.
- Blend must contain no more than 3% metha-
nol.
- Blend must contain more tha n 2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
- Anti-k noc k index mus t be 87 AKI or hig her.
- Blend must not conta in mo re than 15% etha-
nol.
Blend of gasoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend mus t contain no t mo re than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform es-
pecially well for w inter or summe r dr iving . Dur-
ing seasonal change-ove r, we s ugges t that yo u
fill up at busy gas stat ions w here t he seasona l
adjus t ment is mo re likely t o be made in t ime .
(D
Note
- Metha nol fuels which do not meet these re-
quirements may cause cor rosion and dam -
age t o plas tic a nd rubber com ponen t s in t he
fue l system.
- Do not use f ue ls that fa il t o meet the speci -
fie d cr iteri a in th is chap t er.