Octane ratings
The CLC or AKI octane rating is usually lower than
the RON rating:
For example: 95 RON equals 90 CLC or AKI
Unleaded fuels may not be available outside the
continental U.S. and Canada. Therefore, we rec-
ommend you do not take your car to areas or
countries where unleaded fuel may not be avail-
able.
Octane rating indicates a fuel's ability to resist det-
onation. Therefore, buying the correct octane gas
is important to prevent engine "damage".
The RON octane rating is based on the research
method. The CLC (U.S. Cost of Living Council oc-
tane rating) or AKI (antiknock index) octane rating
usually displayed on U.S. fuel pumps is calculated
as research octane number plus motor octane
number, divided by 2, that is written as:
Fuels containing MMT
Some North American fuels contain an octane en-
hancing additive called methylcyclopentadienyl
manganese tricarbonyl (MMT).
If
such fuels are used, your emission control sys-
tem performance may be negatively affected.
The check engine warning light on your instrument
panel may turn on.
If
this occurs, Porsche recommends you stop us-
ing fuels containing MMT.
Portable Fuel Containers
/!\
Danger!
Portable fuel containers,
full or partially
empty, may leak causing an explosion, or re-
sult in fire in case of an accident.
D>
Never carry additional fuel in portable contain-
ers in your vehicle.
Fuels containing alcohol and ether
Some areas of the U.S. require oxygenated fuels
during certain portions of the year. Oxygenated fu-
els are fuels which contain alcohols (such as meth-
anol or ethanol) or ether (such as MTBE).
Under normal conditions, the amount of these
compounds in the fuel will not affect driveability.
You may use oxygenated fuels in your Porsche,
provided the octane requirements for your vehicle
are met. We recommend, however, to change to
a different fuel or station
if
any of the following
problems occur with your vehicle:
-
Deterioration of driveability and performance.
-
Substantially reduced fuel economy.
-
Vapor lock and non-start problems, especially
at high altitude or at high temperature.
-
Engine malfunction or stalling.
R+M
-2-
or
RON+MON
2
Maintenance, Car Care
123
Summary of Contents for 911 GT3 -
Page 1: ...PCJ SCHE 911 Gl3 Owner s Manual ...
Page 13: ...12 ...
Page 50: ...Controls Instruments ...
Page 56: ...Controls Instruments 55 ...
Page 58: ...Controls Instruments ...
Page 81: ...80 Controls Instrument ...
Page 111: ...1 Controls Instruments ...
Page 139: ...138 Maintenance Car Care ...
Page 180: ...Vehicle Identification Technical Data Vehicle Identification Technical Data ...
Page 189: ...Acceleration diagram Technical Data ...
Page 190: ...Transmission diagram Technical Data ...
Page 195: ...Index ...