2004 Cadillac XLR Owner's Manual - Page 244

Notice: We recommend you use only fluid labeled DEXRON® -III, because fluid with that label is made especially for your automatic transmission. Damage caused by fluid other than DEXRON® -III is not covered by your new vehicle warranty. Change both the fluid and filter every 50,000 miles (80 000 km) if the vehicle is mainly driven under one of these conditions: The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see Engine Overheating on page 5-23. A 50/50 mixture of clean, drinkable water and DEX-COOL® coolant will: • In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. • In hilly or mountainous terrain. • High performance operation. If you do not use your vehicle under one of these conditions, change the fluid and filter every 100,000 miles (166 000 km). See Scheduled Maintenance on page 6-4 for the proper service intervals for the transmission fluid and filter. Giving freezing protection down to −34° F −37° C. Give boiling protection up to 265° F (129° C). Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights and gages work as they should. Engine Coolant The cooling system in your vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in your vehicle for 5 years or 150,000 miles (240 000 km), whichever occurs first, if you add only DEX-COOL® extended life coolant. Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core or radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your warranty. Always use DEX-COOL®(silicate-free) coolant in your vehicle. 5-20