1999 Pontiac Montana Owner's Manual - Page 325

yellowblue To get the right reading, the fluid should be at normal operating temperature, which is 180_F to 200_F (82_C to 93_C). Get the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 50_F (10_C). If it's colder than 50_F (10_C), you may have to drive longer. Checking the Fluid Level Then, without shutting off the engine, follow these steps: D Park your vehicle on a level place. Keep the engine running. in PARK (P). D With the parking brake applied, place the shift lever D With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in PARK (P). D Let the engine run at idle for three to five minutes. 1. The dipstick is located toward the back of the engine compartment, next to the brake master cylinder. The dipstick has a bright, red loop design for easy identification. Pull out the dipstick and wipe it with a clean rag or paper towel. 6-19