Fuel Requirements; Octane Rating; Unleaded Fuel - Maserati Quattroporte Automatic 2009 Owner's Manual

M139_UM_usa1.book Page 222 Monday, September 1, 2008 2:39 PM

Fuel Requirements

Octane Rating

Maserati engines are designed for
optimum performance on unleaded
premium gasoline
with an AKI octane rating of 91 or
above. AKI (Anti Knock Index) is an
average of the Research Octane
Number, RON, and the Motor Octane
Number, MON (RON + MON/2 gives
you the AKI).

Unleaded Fuel

Maserati incorporates a catalytic
converter system and you must only
use unleaded gasoline. U.S. and
Canadian regulations require that
pumps delivering unleaded gasoline
be labelled "UNLEADED". Only these
pumps have nozzles which fit your
vehicle's fuel filler inlet. It is unlawful
7
to dispense leaded fuel into a vehicle
labelled "unleaded gasoline only".
Leaded gasoline damages the catalytic
converter and heated oxygen sensor
system. Repeated use of leaded
gasoline will lessen the effectiveness of
the emission control system and could
result in loss of emission warranty
coverage. State and local vehicle
inspection programs will make
222
Fuel Requirements
detection of misfueling easier, possibly
resulting in emission test failure for
misfueled vehicles.
WARNING: Some U.S. & Canadian
gasolines use an octane enhacing
additive called Methy-
Cyclopentadienyl Manganese
Tricarbonyl (MMT). If such fuels are
used your Emission Control System
performance may be affected, and the
check engine light located on the
instrument panel/cluster assembly may
illuminate (come ON). If the check
engine light illuminates (comes ON),
ensure to visit your authorized
Maserati dealer for vehicle service.
Gasoline Containing Alcohol &
Ethers ("Oxygenated Fuels"):
Some fuels in the U.S. and/or Canada,
contain "oxygenates" which are
usually alcohols or ethers. In some
locations in the U.S. and/or Canada,
state or local laws require that the fuel
station fuel service pumps be clearly
marked indicating use of alcohols or
ethers. Please be aware that in some
geographic areas fuel stations may
have fueling pumps that are
unmarked. If you are not sure if the
fuel you will be dispensing into your
vehicle contains alcohol or ethers, ask
the fuel service station operator.
WARNING: Some geographical areas in
the U.S. and/or Canada, require the use
of "oxygenated" fuels to meet
seasonal air quality standards.
- Alcohol - Ethanol: Fuels containing
ONLY up to 10% ethanol by volume
may be used (ethanol may also be
referred to as Ethyl alcohol, or
"Gasohol"
- Ethers - MTBE: Fuel containing ONLY
up to 15% MTBE may be used.
WARNING: Do not use any gasoline
that contains lead as a knock inhibitor,
and DO NOT use lead additives. The
use of Detergent gasoline is effective
in minimizing fuel injector and intake
valve deposits. The use of external fuel
injector cleaning systems/fluids is NOT
recommended.
Tank capacity: approx. 23.78 US gallon
(90 litres), including a 4.7 US gallon (18
litre) reserve.