1997 Pontiac Grand Prix Owner's Manual - Page 291

How to Check and AddOil Check oil only when the engine is cold. Allow the engine to cool two to three hours running. after Automatic Transaxle Fluid When to Check and Change A good time tocheck your automatic transaxle fluid level is when the engine oil is changed. Change both the fluid and filter every 50,000 miles (83 000 km) if the vehicle is mainly driven under one or more of these conditions: In heavy city traffic where the outside temperature regularly reaches 90O (32 C ) or higher. F O If you remove the supercharger oil plug while fill the engine is hot, pressure may cause hot oil to blow outof the oil fill hole. may be burned. You DQnot remove the plug until the engine cools. 1. Clean the area around the oil fill plug before removing it. 2, Remove the oil fill plug using a 3/16 inch Allen wrench. 5. The oil level is correct when it justreaches the 0 0 In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, the fluid and filter donot require changing. See "Scheduled Maintenance Services" in the Index. bottom of the threads of the inspection hole. 4. Replace the oil plug with the O-ring in place. Torque to 88 lb-in (10 N.m).