Dodge 18681 Viper - Manual (Page 170)

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 of 50% ethylene glycol
(minimum) with recommended antifreeze for proper
corrosion protection of your engine that contains alu-
minum components.
• 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. Inspect
170 MAINTAINING YOUR VEHICLE