2010 DODGE VIPER fuel

▫Anti-Lock Brake System ............... 158
 Tire Safety Information ................. 161
▫ Tire Markings ....................... 161
▫ Tire Identification Number (TIN) ......... 165
▫ Tire Terminology And Definitions ......... 166
▫ Tire Loading And Tire Pressure .......... 167
 Tires — General Information ............. 171
▫ Tire Pressure ....................... 171
▫ Tire Inflation Pressures ................ 172
▫ Tire Pressures For High Speed Operation . . . 174
▫ Radial Ply Tires ..................... 174
▫ Tire Spinning ....................... 174
▫ Tread Wear Indicators ................. 175 ▫
Life Of Tire ........................ 176
▫ Replacement Tires .................... 176
▫ Tire Storage ........................ 177
 Snow Tires .......................... 178
 Tire Rotation Recommendations ........... 178
 Tire Pressure Monitor System (TPMS) ....... 179
▫ Low Tire Indicator ................... 179
 Fuel Requirements ..................... 181
▫ 8.4L Engine ........................ 181
▫ Reformulated Gasoline ................ 181
▫ Gasoline/Oxygenate Blends ............. 182
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 182
▫ MMT In Gasoline .................... 183
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▫Materials Added To Fuel ............... 183
▫ Fuel System Cautions ................. 184
▫ Carbon Monoxide Warnings ............ 185
 Adding Fuel ......................... 185
▫ Fuel Filler Cap (Gas Cap) .............. 185
 Trailer Towing ........................ 187 
Recreational Towing
(Behind Motorhome, Etc.) ................ 187
▫ Towing This Vehicle Behind Another Vehicle
(Flat Towing With All Four Wheels On The
Ground) ........................... 187
 Ground Clearance ..................... 187
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STARTING AND OPERATING 143

6. Press the red ENGINE START button located on the
instrument panel. Release the button when the engine
starts.If Engine Fails to Start
CAUTION!
To prevent damage to the starter, do not crank the
engine for more than 15 seconds at a time. Wait 10 to
15 seconds before trying again.
WARNING!
•Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to
start the vehicle. This could result in flash fire
causing serious personal injury.(Continued)
ENGINE START Button
146 STARTING AND OPERATING

WARNING! (Continued)
•Do not attempt to push or tow your vehicle to get
it started. Unburned fuel could enter the catalytic
converter and once the engine has started, ignite
and damage the converter and vehicle. If the
vehicle has a discharged battery, booster cables
may be used to obtain a start from a booster
battery or the battery in another vehicle. This type
of start can be dangerous if done improperly, so
follow this procedure carefully. Refer to “Jump
Starting” in “What To Do In Emergencies” for
further information.
If the engine is flooded, it may start to run, but not have
enough power to continue running when the ENGINE
START button is released. If this occurs, continue crank-
ing up to 15 seconds with the accelerator pedal pushed all the way to the floor. Release the accelerator pedal and
the ENGINE START button once the engine is running
smoothly.
If the engine shows no sign of starting after two 15 sec-
ond periods of cranking with the accelerator pedal held
to the floor, the “Normal Starting” procedure should be
repeated.
After Starting
The idle speed will automatically decrease as the engine
warms up.
MANUAL TRANSMISSION
NOTE:
The parking brake should be engaged and the
shift lever placed into REVERSE before leaving the
vehicle, especially when parked on an incline.
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STARTING AND OPERATING 147

into REVERSE with the ignition key OFF. This is
normal operation of the transmission reverse inhibitor
system.
•Shifting gears during cold weather may require an
increased effort until the transmission lubricant is
warm. This is normal and not harmful to the transmis-
sion.
•Due to the high performance nature of your drivetrain,
a certain amount of noise from the transmission is
normal. This noise can be most noticeable when the
vehicle is idling in NEUTRAL with the clutch engaged
(clutch pedal released), but it may also be heard when
driving. The noise may also be more noticeable when
the transmission is warm. This noise is normal and is
not an indication of a problem with your clutch or
transmission.
Recommended Shift Speeds
To use your manual transmission for fuel economy it
should be upshifted as listed below. Shift at the vehicle
speeds listed for acceleration. Earlier upshifts during
cruise conditions (relatively steady speeds) will result in
increased fuel economy, and may be used as indicated.
MANUAL TRANSMISSION
RECOMMENDED SHIFT SPEEDS 1-2 2-3 3-4 4-5 5-6
mph 15 25 40 45 50
(km/h) (24) (40) (64) (72) (80)
Higher upshift speeds may be used to obtain a desired
acceleration rate.
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Skip Shift Indicator Light
There are times when you must shift the transmis-
sion directly from first gear into fourth gear instead
of from first gear into second gear. This is to help you get
the best possible fuel economy from your vehicle. This
occurs when engine coolant is higher than 106°F (41°C),
and vehicle speed is greater than 12 mph (19 km/h) but
less than 20 mph (32 km/h), and engine speed is less than
1,322 RPM, and the transmission is in first gear, and the
accelerator is at 1/4 throttle or less. The “Skip Shift
Indicator Light” located in the tachometer will turn
amber during these times.
When the “Skip Shift Indicator Light” turns amber, the
shift mechanism will only allow shifts from first gear to
fourth gear. After you shift the transmission into fourth
gear, you can press the clutch in and shift to another
forward gear. Downshifting - Proper downshifting will improve fuel
economy and prolong engine life.
To maintain a safe speed and prolong brake life, down-
shift to maintain a safe speed when descending a steep
grade.
WARNING!
Skipping more than one gear while downshifting,
could cause you to lose control of your vehicle. You
could have an accident.
CAUTION!
If you skip more than one gear while downshifting
or downshift at too high an engine speed, you could
damage the engine, transmission, or clutch.
150 STARTING AND OPERATING

WARNING! (Continued)
•Unequal tire pressures from one side of the ve-
hicle to the other can cause the vehicle to drift to
the right or left.
•Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under-inflation also increases tire
rolling resistance and results in higher fuel consumption.
Ride Comfort and Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver’s side “B” Pillar.
Some vehicles may have Supplemental Tire Pressure
Information for vehicle loads that are less than the
maximum loaded vehicle condition. These pressure con-
ditions will be found in the “Supplemental Tire Pressure
Information” section of this manual.
The pressure should be checked and adjusted as well as
inspecting for signs of tire wear or visible damage at least
once a month. Use a good quality pocket-type gauge to
check tire pressure. DO NOT make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under-inflated.
172 STARTING AND OPERATING

your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue to function
properly.
FUEL REQUIREMENTS
8.4L Engine
The 8.4L engine is designed to meet all
emissions regulations and provide excel-
lent fuel economy and performance when
using high-quality premium unleaded
gasoline with an octane rating of 91 or
higher.
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 “premium” gasoline
before 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) which
define fuel properties necessary to deliver enhanced
emissions, engine performance, and durability for your
vehicle. The manufacturer recommends the use of gaso-
lines that meet the WWFC specifications if they are
available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline.”
Reformulated gasolines contain oxygenates, and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
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