Ethanol; Clean Air Gasoline; Mmt In Gasoline; Materials Added To Fuel - Jeep Cherokee 2014 Owner's Manual

Ethanol

The manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 10% ethanol. Purchasing your fuel from a
reputable supplier may reduce the risk of ex-
ceeding this 10% limit and/or of receiving fuel
with abnormal properties. It should also be
noted that an increase in fuel consumption
should be expected when using ethanol-
blended fuels, due to the lower energy content
of ethanol. Problems that result from using
methanol/gasoline or E-85 ethanol blends are
not the responsibility of the manufacturer. While
MTBE is an oxygenate made from Methanol, it
does not have the negative effects of Methanol.
CAUTION!
Use of fuel with Ethanol content higher than
10% may result in engine malfunction, start-
ing and operating difficulties, and materials
degradation. These adverse effects could
result in permanent damage to your vehicle.
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Clean Air Gasoline

Many gasolines are now being blended to con-
tribute to cleaner air, especially in those areas
where air pollution levels are high. These new
blends provide a cleaner burning fuel and some
are referred to as "reformulated gasoline."
The manufacturer supports these efforts toward
cleaner air. You can help by using these blends
as they become available.

MMT In Gasoline

MMT (Methylcyclopentadienyl Manganese Tri-
carbonyl) 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 emission system
performance in some vehicles. The manufac-
turer 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 or not his/her gasoline contains
MMT.

Materials Added To Fuel

All gasoline sold in the United States is 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. Therefore, you
should not have to add anything to the fuel.
FUEL REQUIREMENTS —
DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier. For most year-round service, No. 2
diesel fuel, meeting ASTM specification D-975
Grade S15, will provide good performance. If
the vehicle is exposed to extreme cold (below
20° F or -7° C), or is required to operate at
colder-than-normal conditions for prolonged pe-
riods, use climatized No. 2 diesel fuel or dilute
the No. 2 diesel fuel with 50% No. 1 diesel fuel.
This will provide better protection from fuel
gelling or wax-plugging of the fuel filters. This
vehicle must only use premium diesel fuel
that meets the requirements of EN 590. Bio-
diesel blends that meet EN 590 may also be
used.
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