1999 Chevrolet Camaro Owner's Manual - Page 272

yellowblue Automatic Transmission Fluid When to Check and Change A good time to check your automatic transmission fluid level is when the engine oil is changed. Change both the fluid and filter every 15,000 miles (25 000 km) if the vehicle is mainly driven under one or more of these conditions: 4. Close the cover without overlap (clamp will not latch with overlap) and latch the clamps. D In heavy city traffic where the outside temperature regularly reaches 90_F (32_C) or higher. D In hilly or mountainous terrain. D Uses such as high performance operation. D When doing frequent trailer towing. D Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km). See "Scheduled Maintenance Services" in the Index. 6-20