2004 Ford Thunderbird Owner Guide 2nd Printing - Page 176

Maintenance and Specifications Used engine coolant should be disposed of in an appropriate manner. Follow your community's regulations and standards for recycling and disposing of automotive fluids. Coolant refill capacity To find out how much fluid your vehicle's cooling system can hold, refer to Refill capacities in this section. Fill your engine coolant reservoir as outlined in Adding engine coolant in this section. Severe climates If you drive in extremely cold climates (less than -36° C [-34° F]), it may be necessary to increase the coolant concentration above 50%. Refer to the chart on the coolant container to ensure the coolant concentration in your vehicle will provide adequate freeze protection. Never increase the engine coolant concentration above 60% (protection to -60°F). At a level over 60%, your engine could overheat and become damaged. If you drive in extremely hot climates, it is still necessary to maintain the coolant concentration at 50/50 coolant and water. Do not allow the coolant concentration to fall below 40% coolant. At a concentration less than 40%, the corrosion protection to your engine and cooling components may be compromised and permanent damage may result. What you should know about fail-safe cooling If the engine coolant supply is depleted, this feature allows the vehicle to be driven temporarily before incremental component damage is incurred. The "fail-safe" distance depends on ambient temperatures, vehicle load and terrain. How fail-safe cooling works If the engine begins to overheat: • The engine coolant temperature gauge will move to the H (hot) area. • The symbol will illuminate. • The • The 176 symbol will illuminate. symbol will illuminate. 2004 Thunderbird (tbr) Owners Guide (post-2002-fmt) USA English (fus)