2008 Chrysler Crossfire Owner Manual - Page 286

284 MAINTAINING YOUR VEHICLE • Maintain a coolant concentration of a minimum of 50% ethylene glycol Extended Life Coolant and high quality water with recommended antifreeze for proper corrosion protection of your engine cooling system that contains aluminum components. • Make sure that the radiator and coolant bottle 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 coolant performance, poor fuel economy, and increased emissions. 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 indicate deterioration of the rubber. Pay particular attention to the hoses nearest to high heat sources such as the exhaust manifold. Inspect hose routing to be sure hoses do not touch any heat source or moving component that may cause heat damage or mechanical wear. Ensure the nylon tubing in these areas has not melted or collapsed. Inspect all hose connections such as clamps and couplings 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 cause failure.