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FUEL REQUIREMENTS
Your vehicle is designed to meet all emis-
sion regulations and provide excellent fuel
economy when using high quality pre-
mium unleaded gasoline having an octane
rating of 91 or higher.
Spark Knock
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“regular”gasoline be-
fore considering service for the vehicle.
Over 40 automobile manufacturers around the world
have issued and endorsed consistent gasoline specifica-
tions (the World Wide Fuel Charter, WWFC) to definefuel properties necessary to deliver enhanced emissions,
engine performance, and durability for your vehicle. The
manufacturer recommends the use of gasolines that meet
the WWFC specifications if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning fuel referred to as Reformulated Gasoline.
Reformulated gasolines contain oxygenates, and are spe-
cially blended to reduce vehicle emissions and improve
air quality.
The manufacturer strongly supports the use of reformu-
lated gasolines. Properly blended reformulated gasolines
will provide excellent performance and durability of
engine and fuel system components.
142 STARTING AND OPERATING
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Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with mate-
rials called oxygenates such as 10% alcohol, MTBE, ETBE
or TAME. Oxygenates are required in some areas of the
country during the winter months to reduce carbon
monoxide emissions. Fuels blended with these oxygen-
ates may be used in your vehicle.
CAUTION!
DO NOT use gasolines containing METHANOL.
Gasoline containing methanol may damage critical
fuel system components.
MMT In Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase the octane. Gaso-
lines blended with MMT offer no performance advantage
beyond gasolines of the same octane number without
MMT. Gasolines blended with MMT reduce spark plug
life and reduce emission system performance in some
vehicles. The manufacturer recommends that gasolines
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.
It is even more important to look for gasolines without
MMT in Canada because MMT can be used at higher
levels than are allowed in the United States. MMT is
prohibited in Federal and California reformulated gaso-
lines.
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Materials Added to Fuel
All gasoline sold in the United States and Canada is
required to contain effective detergent additives. The use
of additional detergents or other additives is not needed
under normal conditions.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
or damage the emission 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 orsome light smoke, your engine may be out-of-tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
•The use of fuel additives which are now being sold as
octane enhancers are 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 are not
the responsibility of the manufacturer.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
144 STARTING AND OPERATING
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Headlight Aiming
The headlights on your new Viper were aimed at the
factory. The factory setting was made at a no load setting.
A great increase in weight will change the aiming and it
may be necessary to readjust the headlights if you
typically carry an excessive amount of weight in the
trunk or otherwise suspect misalignment.
Aiming Check
Each headlight assembly can be adjusted up and down
only. No left to right adjustment is necessary. To check,
proceed as follows:
1. Fill the fuel tank and park the vehicle on level ground.
A driveway is not normally level. If in doubt and you
have no way to check levelness, do not attempt to adjust
the headlights.
2.
Mark the position of the headlights on a wall prior to
loading the vehicle. Load the trunk with the items you
normally carry. Have someone sit in the driver’s seat who is
about the same weight as the person who drives the vehicle.
3. Push down on the front and rear of the vehicle several
times to make sure that the suspension has settled.
4. Then readjust the headlights to the original position.
NOTE:If any further adjustments are necessary, contact
your dealership.
FLUIDS AND CAPACITIESU.S. Metric
Fuel (approximate)
8.3 Liter Engine (Premium 91
Octane)18 gal-
lons68 liters
Engine Oil-With Filter
8.3 Liter Engines (0W-40) 10 qts. 9.5 Liters
Cooling System *
8.3 Liter Engines* (Mopar
Antifreeze/Coolant 5 Year/
102,000 Mile Formula)16 qts. 15 Liters
* Includes heater and coolant recovery bottle filled to
MAX level.
212 MAINTAINING YOUR VEHICLE
Page 213 of 264
RECOMMENDED FLUIDS, LUBRICANTS AND
GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MoparAntifreeze/Coolant 5 Year/102,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology)
Engine Oil Use API rated SL/CF full synthetic engine oil. SAE 0W-40 is recommended.
Refer to the engine oil viscosity chart for the correct SAE grade meeting
DaimlerChrysler Material Standard MS-10725.
Engine Oil Filter MoparEngine Oil Filter
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine compart-
ment.
Fuel Selection Premium Unleaded 91 Octane Only or higher
MAINTAINING YOUR VEHICLE 213
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Engine Oil Viscosity...................166,212
Engine Oil Viscosity Chart................. 166
Exhaust Gas Caution................51,145,182
Exhaust System......................... 182
Exterior Lights.......................... 205
Fan .................................. 105
Filters
Air Cleaner.......................... 171
Engine Oil........................... 213
Flashers
Hazard Warning.....................87,148
Turn Signal........................... 87
Flash-To-Pass........................... 78
Floor Console........................... 66
Fluid Capacities......................... 212
Fluid Leaks............................. 52
Fluid Level Checks
Brake............................190,214Capacities........................... 212
Cooling System....................... 183
Engine Oil........................... 164
Manual Transmission................... 193
Power Steering.....................178,214
Fluids................................ 213
Fog Lights.........................75,77,90
Four-Way Hazard Flasher.................. 148
Freeing A Stuck Vehicle................... 155
Fuel................................. 142
Adding............................. 145
Additives............................ 144
Clean Air............................ 142
Gasoline............................ 142
Gauge............................... 93
Octane Rating........................ 213
Requirements......................142,212
Tank Capacity........................ 212
Fueling............................... 145
248 INDEX