Maserati GranTurismo 2024 Owner's Manual page 332

Technical Specifications
not the responsibility of Maserati and
may not be covered under warranty.
MMT in Gasoline
MMT (Methylcyclopentadienyl
Manganese Tricarbonyl) is a manganese
containing metallic additive that is
blended into some gasoline to increase
octane.
Gasoline blended with MMT provides no
performance advantage beyond gasoline
of the same octane number without
MMT.
Maserati recommends gasoline without
MMT to be used in your vehicle. The
MMT content of gasoline may not
be indicated on the gasoline pump;
therefore, you should ask the gasoline
station operator whether or not the
gasoline contains MMT.
It is even more important to look for
gasoline without MMT in Canada,
because MMT can be used at levels
higher than those allowed in the United
States. MMT is prohibited in Federal and
California reformulated gasoline.
Materials Added to Fuel
All gasoline sold in the United States is
8
required to contain effective detergent
additives. Use of additional detergents
or other additives is not needed under
normal conditions and they would result
in additional cost.
330
Therefore, you should not have to add
anything to the fuel.
Fuel System Warnings
CAUTION!
Follow these guidelines to maintain your
vehicle's performance:
• The use of leaded gasoline is
prohibited by Federal and Provincial
law. Using leaded gasoline can impair
engine performance and damage the
emissions control system.
• The use of fuel additives, which are
now being sold as octane enhancers,
is not recommended. Most of these
products contain high concentrations
of methanol. Fuel system damage
or vehicle performance problems
resulting from the use of such fuels or
additives is not the responsibility of
Maserati.
NOTE:
Intentional tampering with the emissions
control system can result in civil
penalties civil penalties and could void
the vehicle warranty.