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Adding Coolant
Your vehicle has been built with an improved engine
coolant that allows extended maintenance intervals. This
coolant can be used up to 5 Years or 100,000 miles before
replacement. To prevent reducing this extended mainte-
nance period, it is important that you use the same
coolant throughout the life of your vehicle. Please review
these recommendations for using Hybrid Organic Addi-
tive Technology (HOAT) coolant.
When adding coolant, a minimum solution of 50% rec-
ommended Mopar Antifreeze/ Coolant 5 Year/100,000
Mile Formula HOAT (Hybrid Organic Additive Technol-
ogy), or equivalent, in water should be used. Use higher
concentrations (not to exceed 70%) if temperatures below
34°F (37°C ) are anticipated.
Use only high purity water such as distilled or deionized
water when mixing the water/engine coolant solution.The use of lower quality water will reduce the amount of
corrosion protection in the engine cooling system.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing coolant types will decrease the life of the
engine coolant and will require more frequent coolant
changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
coolant, and to insure that coolant will return to the
radiator from the coolant recovery bottle.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
192 MAINTAINING YOUR VEHICLE
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Brake, Power Steering, and Fuel System Hoses
When servicing the vehicle for scheduled maintenance,
inspect surface of hoses and nylon tubing for evidence of
heat and mechanical damage. Hard and brittle rubber,
cracking, checking, tears, cuts, abrasion, and excessive
swelling suggest deterioration of the rubber. Particular
attention should be made to examining those hose sur-
faces nearest to high heat sources, such as the exhaust
manifold.
Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
Insure nylon tubing in these areas has not melted or
collapsed.
NOTE:Often, fluids are used during assembly plant
operations to ease the assembly of hoses to couplings.
Therefore, oil wetness at the hose-coupling area is not
necessarily an indication of leakage. Actual dripping ofhot fluid when systems are under pressure (during
vehicle operation) should be noted before hose is re-
placed based on leakage.
High pressure fuel system hoses have unique material
characteristics that provide adequate sealing and resist
attack by deteriorated gasoline.
Use only manufacturer specified hoses or their equiva-
lent in material and specification, in any fuel system
servicing. It is mandatory to replace all clamps that have
been loosened or removed during service.
NOTE:Inspection of brake hoses should be done when-
ever the brake system is serviced and at every engine oil
change. If there is any evidence of cracking, scuffing, or
worn spots, the hose should be replaced immediately!
Eventual deterioration of the hose can take place with
possible burst failure.
196 MAINTAINING YOUR VEHICLE
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Fluid Level Check
The fluid in the transmission should be checked when-
ever other underhood services are done. Check the fluid
level by removing the fill plug located on the left side of
the transmission. The fluid level should be at the bottom
of the fill hole. Add fluid, if necessary, to maintain the
proper level.
Frequency of Fluid Change
Under normal operating conditions, the fluid installed at
the factory will give satisfactory lubrication for the life of
the vehicle. If the vehicle is operated under severe
conditions, change the fluid as specified in Maintenance
ScheduleB. If contaminated with water, the fluid should
be changed immediately.
Rear Axle
Fluid Level Check
Every 12 months or 6,000 miles (10 000 km) the exterior of
the axle should be checked for evidence of gear oil
leakage. This check should be made with the vehicle in a
level position, supported by the suspension, on an axle
and wheel type hoist, or on the ground. The axle fluid
level should be between the bottom of the filler plug and
a point approximately 3/8 inch (9.5mm) below the filler
plug.
Lubricant Selection
Use only the manufacturer’s recommended transmission
fluid. Refer to the Recommended Fluids, Lubricants and
Genuine Parts section for correct fluid type. This Limited
Slip Differential requires that a friction control additive
be added to the gear oil whenever a fluid change is made.
MAINTAINING YOUR VEHICLE 199
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Frequency of Oil Change
Drain and fill the axle at the interval specified in the
Maintenance Schedules. Change the fluid immediately if
contaminated with water.
Wheel Bearings
Your Viper has permanently sealed wheel bearings that
do not require periodic maintenance.
Appearance Care
Your manufacturer’s dealer offers a complete line of
products for cleaning your Viper. Follow the instructions
on each container.
Leather or Vinyl Seat/Trim Care and Cleaning
Leather is best preserved by regular cleaning with a
damp soft cloth. Small particles of dirt can act as an
abrasive and damage the leather surface and should be
removed immediately with a damp cloth. Stubborn soils
can be removed easily with a soft cloth and Mopar Total
Clean or equivalent. Care should be taken to avoidsoaking the leather with any liquid. Please do not use
polishes, oils, cleaning fluids, solvents, detergents, or
ammonia based cleaners to clean the leather. Application
of a leather conditioner is not required to maintain the
original condition.
Paint and Trim
Your vehicle is exposed to the corrosive effects of chemi-
cal fall out, salt spray, and road film. To protect not only
the paint and trim, but also exposed mountings and
fixtures, it is important you wash it often and thoroughly.
After washing, allow all surfaces to drain and dry before
parking in a closed garage. Prompt washing may not
thoroughly remove these deposits. Additional cleaners
may be required. When using chemical cleaners formu-
lated for this purpose, be certain they are safe for use on
urethane painted surfaces.
200 MAINTAINING YOUR VEHICLE
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Use soap and water on dull black window trim. Polish or
cleaners may leave a white residue. If desired, you may
polish your vehicle immediately by using Mopar Auto-
mobile Polish or equivalent.
Glass Surfaces
All glass surfaces should be cleaned regularly with any
commercial household-type glass cleaner. Never use an
abrasive type cleaner.
Cleaning Plastic Instrument Cluster Lenses
When cleaning the lenses, use care to avoid scratching
the plastic.
NOTE:Never scrape the windows with squeegees,
razor blades, or other sharp instruments.
•Clean with a wet soft rag. A mild soap solution may be
used, but do not use high alcohol content or abrasive
cleaners. If using soap, wipe clean with a clean damp
rag or chamois cloth.
•Dry with a soft tissue.
Damage to the Body Finish
Any stone chips, fractures or deep scratches in the finish
should be promptly repaired.
Minor damage can be repaired by using touch-up mate-
rials available at your dealers. More extensive damage
should be corrected in your dealer’s paint facility.
Seat Belt Maintenance
Do not bleach, dye or clean the belts with chemical
solvents or abrasive cleaners. This will weaken the fabric.
Sun damage will also weaken the fabric.
If the belts need cleaning, use a mild soap solution or
lukewarm water. Do not remove the belts from the car to
wash them.
Replace the belts if they appear frayed or worn or if the
buckles do not work properly.
MAINTAINING YOUR VEHICLE 201
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Convertible Top Care — Convertible Models Only
Use a mild detergent to clean the top. Avoid heavy
scrubbing and rinse with plenty of clean water. Allow to
dry thoroughly before storage.
Carpeting
Vacuum your carpeting regularly to prevent a soil
buildup. Shampoo soiled carpeting with a reliable uphol-
stery cleaner, using a natural sponge or soft bristle brush.
After carpeting dries, vacuum it thoroughly.
Underbody Maintenance
The corrosive materials used for ice and snow removal or
dust control may accumulate on the underbody of your
vehicle. If not removed, these materials may accelerate
rusting and deterioration of underbody components such
as fuel lines, frame, floor pan, exhaust system, etc.
At least twice during the winter months hose down the
wheel wells and underside of the vehicle. Make sure youremove mud and salt from panels, crevices and ledges,
and that all drain holes and channels are free of debris.
NOTE:You can do more harm by hosing off the vehicle
without removing caked mud and debris.
The frame of your Viper is galvanized for rust-through
protection. It is also dipped in a black E-Coat to protect
the welded areas. Avoid any scratches through to bare
metal.
Commercial Car Washes
We do not recommend that you take your Viper through
a commercial car wash.
In the event that you do take your Viper to a commercial
car wash, move the Heater/Air Conditioning blower
control to the lowest setting. This will prevent the possi-
bility of water entering the system.
202 MAINTAINING YOUR VEHICLE
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•If the vehicle will be subjected to freezing tempera-
tures, remove the battery and store it in a dry, well
ventilated area or place a trickle charger (1.5 Amp)
with automatic shutdown / overcharge protection
connected to the battery. Do not leave the trickle
charger hooked up to the battery without being
plugged into the 110 AC voltage outlet, because this
will result in further drain on the vehicle’s battery. If
the vehicle is not going to be driven in the next 3
weeks, follow the battery recharge procedure in the
Service Manual, then disconnect the battery at the
negative terminal or use the save feature described in
Maintaining your Vehicle section under the Mainte-
nance Procedures sub-section, within Maintenance-
Free Battery.CAUTION!
Use care when disconnecting the remote positive
cable. It is connected to the battery and can short out
to any metal on the vehicle. Always tape or wrap the
exposed cable end to prevent electrical shorts.
•Disconnecting the battery causes the engine control
system to lose memory of some “learned” functions,
unless using the Battery Save feature described in
Maintaining your Vehicle section under the Mainte-
nance Procedures sub-section, within Maintenance-
Free Battery. The engine may run rough when first
started after a battery disconnect until the control
module “relearns” these functions.
MAINTAINING YOUR VEHICLE 209
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Page 225 of 264
MAINTENANCE SCHEDULES
CONTENTS
Emission Control System Maintenance........226
Maintenance Schedules...................226▫Schedule “B”........................229
▫Schedule “A”........................236
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