MMT In Gasoline
Methylcyclopentadienyl Manganese
Tricarbonyl (MMT) 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. Gasoline blended
with MMT reduces spark plug life and
reduces emissions system performance
in some vehicles. The manufacturer
recommends that gasoline without
MMT be used in your vehicle. The MMT
content of gasoline may not be
indicated on the gasoline pump;
therefore, you should ask your gasoline
retailer whether the gasoline contains
MMT. MMT is prohibited in Federal and
California reformulated gasoline.
Materials Added To Fuel
Besides using unleaded gasoline with
the proper octane rating, gasolines that
contain detergents, corrosion and
stability additives are recommended.
Using gasolines that have these
additives will help improve fuel
economy, reduce emissions, and
maintain vehicle performance.Designated TOP TIER
Detergent Gasoline
contains a higher level
of detergents to further
aide in minimizing
engine and fuel system
deposits. When
available, the usage of Top Tier
Detergent gasoline is recommended.
Visit www.toptiergas.com for a list of
TOP TIER Detergent Gasoline Retailers.
Indiscriminate use of fuel system
cleaning agents should be avoided.
Many of these materials intended for
gum and varnish removal may contain
active solvents or similar ingredients.
These can harm fuel system gasket and
diaphragm materials.
Fuel System Cautions
Caution!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited
by Federal law. Using leaded gasoline can
impair engine performance and damage
the emissions control system.
An out-of-tune engine or certain fuel or
ignition malfunctions can cause the
catalytic converter to overheat. If you notice
a pungent burning odor or some light
smoke, your engine may be out of tune or
malfunctioning and may require immediate
service. Contact your authorized dealer for
service assistance.
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 the manufacturer and may
void or not be covered under the New
Vehicle Limited Warranty.
Note:
Intentional tampering with the
emissions control system can result in
civil penalties being assessed against
you.
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TECHNICAL SPECIFICATIONS
