Fuel Requirements - Maserati GranTurismo Owner's Manual

Fuel Requirements

Requirements of Gasoline
The engines are designed to meet all
environmental regulations and provide
excellent fuel economy and performance
when using high-quality unleaded
gasoline with a minimum octane rating
of 95.
For vehicle top performance, use
unleaded gasoline with no less than 98
minimum octane rating.
Light spark knock at low engine speeds
is not harmful to your engine.
However, continued heavy spark knock
at high speeds can cause damage, and
immediate service is required.
Poor quality gasoline can cause
problems such as hard starting, stalling,
and hesitations. If you experience these
symptoms, try another brand of gasoline
before considering service for the
vehicle at the Service Network.
Over 40 auto manufacturers worldwide
have issued and endorsed consistent
gasoline specifications (the World Wide
Fuel Charter, WWFC) which define
fuel properties necessary to deliver
enhanced emissions, performance, and
durability for your vehicle.
Maserati recommends the use of
gasoline that meets the WWFC
specifications if they are available.
Besides using unleaded gasoline with
the proper octane rating, gasoline that
contain detergents, anti-corrosion and
stability additives are recommended.
Using gasoline that have these additives
may help improve fuel economy,
reduce emissions, and maintain vehicle
performance.
CAUTION!
• Maserati strongly recommends the use
of unleaded fuel ONLY. Use of lesser
grade fuel will lead to reduced engine
performance, and poor fuel economy
and can lead to the Malfunction
Indicator Light illuminating on the
instrument cluster. Continued use of
lesser grade fuel can lead to engine
misfire problems and possible catalytic
converter damage.
•
The anti-pollution devices of
the vehicle require unleaded fuel
to be used at all times. Under
no circumstance, not even in an
emergency, should leaded fuel be
supplied to the fuel tank, not even
a minimum quantity. This would
irreparably damage the catalytic
converters. An inefficient catalytic
converter results in noxious exhaust
emissions which damage the
environment.
Technical Specifications
Gasoline Containing Alcohol & Ethers
(Oxygenated Fuels)
Some fuels in some geographical areas,
contain "oxygenates" which are usually
alcohols or ethers. The fuel station
service pumps with oxygenated fuels
must be clearly marked indicating use of
alcohols or ethers.
Please be aware that in some
geographic areas fuel stations may have
fuelling 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 or change station.
CAUTION!
The use of detergent gasoline is
effective in minimising fuel injector and
intake valve deposits.
The use of external fuel injector cleaning
systems/fluids is NOT recommended.
Some geographic areas, 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. Do not
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