Page 186 of 264

WARNING!
•The warning words“DO NOT OPEN HOT”on
the pressure cap are a safety precaution. Never
add coolant to the radiator when the engine is
overheated. Do not loosen or remove the pressure
cap to cool overheated engine. Heat causes pres-
sure to build up in the cooling system. To prevent
scalding or injury, do not remove the pressure cap
while the system is hot or under pressure.
•Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or
engine damage may result.
Disposal of Used Engine Coolant
Used ethylene glycol based engine coolant is a regulated
substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children
do not store ethylene glycol based engine coolant in open
containers or allow it to remain in puddles on the
ground. If ingested by a child, contact a physician
immediately. Clean up any ground spills immediately.
186 MAINTAINING YOUR VEHICLE
Page 187 of 264
Coolant Level
The coolant recovery bottle provides a visual method for
checking the coolant level without removing the pressure
cap.
With the engine warmed up, the coolant level should be
between MIN and MAX on the coolant recovery bottle.When additional coolant is needed to maintain the
proper level, it should be added to the coolant recovery
bottle.
Points to Remember
•
Do not overfill the bottle.
•Check coolant freeze point in the coolant bottle. If
antifreeze needs to be added, contents of the coolant
bottle also must be protected against freezing.
•If frequent coolant additions are required, or if the
level in the bottle does not drop when the engine cools,
the cooling system should be pressure tested for leaks.
•Maintain coolant concentration at 50% HOAT ethylene
glycol engine coolant (minimum) and distilled water
for proper corrosion protection of your engine which
contains aluminum components.Coolant Recovery Bottle
MAINTAINING YOUR VEHICLE 187
7
Page 188 of 264

•Make sure that the radiator and bottle overflow hoses
are not kinked or obstructed.
•Keep the front of the radiator clean. If your vehicle has
air conditioning, keep the front of the condenser clean
also.
•Do not change the thermostat for summer or winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance.
Hoses and Vacuum/Vapor Harnesses
Inspect surfaces of hoses and nylon tubing for evidence
of heat and mechanical damage. Hard or soft spots,
brittle rubber, cracking, checking, tears, cuts, abrasions,
and excessive swelling suggest deterioration of the rub-
ber. Pay particular attention to those hoses nearest to
high heat sources such as the exhaust manifold. Inspecthose routing to be sure hoses do not touch any heat
source or moving component that may cause heat dam-
age or mechanical wear.
Insure nylon tubing in these areas has not melted or
collapsed.
Inspect all hose connections such as clamps and cou-
plings to make sure they are secure and no leaks are
present.
Components should be replaced immediately if there is
any evidence of degradation that could result in failure.Brake System
To assure brake system performance, all brake system
components should be inspected periodically. Suggested
service intervals can be found in Section 8 of this manual.
188 MAINTAINING YOUR VEHICLE
Page 212 of 264

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 246 of 264

Charging System Light..................... 90
Chart, Tire Sizing........................ 123
Check Engine Light (Malfunction Indicator Light) . 162
Checks, Safety........................... 51
Child Restraint........................34,39
Child Restraint Tether Anchors............... 37
Circuit Breakers......................... 197
Clean Air Gasoline....................... 142
Climate Control......................... 104
Clock................................. 93
Compact Disc Maintenance................. 103
Compact Spare Tire...................... 134
Console............................... 66
Console, Floor........................... 66
Contract, Service........................ 236
Converter, Catalytic...................... 168
Convertible............................. 55
Convertible Boot.......................59,64
Convertible Top.......................55,196Convertible Top Maintenance............... 196
Coolant Pressure Cap..................... 185
Cooling System......................... 183
Adding Coolant (Antifreeze).............. 185
Coolant Capacity...................... 212
Coolant Level......................183,187
Disposal of Used Coolant................ 186
Drain, Flush, and Refill.................. 184
Inspection........................... 183
Points to Remember.................... 187
Pressure Cap......................... 185
Radiator Cap......................... 185
Rubber and Plastic Components............ 188
Selection of Coolant...............184,212,213
Crankcase Emission Control System.......... 171
Customer Assistance..................... 235
Daytime Running Lights................... 76
Dealer Service.......................... 163
246 INDEX
Page 247 of 264

Defroster, Windshield...................... 51
Delay (Intermittent) Wipers................. 82
Diagnostic System, Onboard................ 161
Dimmer Control......................... 74
Dimmer Switch, Headlight.................. 78
Disposal
Antifreeze (Engine Coolant)............... 186
Door Locks............................. 13
Door Locks, Automatic.................... 15
Doors................................. 13
Drive Belts............................ 168
Driving
On Slippery Surfaces.................... 154
Electric Remote Mirrors.................... 68
Emergency Brake........................ 116
Emergency, In Case of
Freeing Vehicle When Stuck............... 155
Hazard Warning Flasher................. 148Jump Starting......................... 150
Overheating.......................... 148
Towing............................. 155
Emission Control System Maintenance......162,218
Engine............................... 160
Break-In Recommendations................ 50
Checking Oil Level..................... 164
Compartment......................... 160
Coolant (Antifreeze).................183,213
Cooling...........................90,183
Exhaust Gas Caution..................51,145
Fails to Start.......................... 112
Fuel Requirements..................142,212
Oil ...........................164,212,213
Oil Change Interval.................... 165
Oil Disposal.......................... 167
Oil Filter............................ 167
Oil Selection.......................166,212
Overheating........................90,148
INDEX 247
10
Page 248 of 264

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