1998 Cadillac DeVille Owner's Manual - Page 306
1998 Cadillac DeVille Manual
Page 306 highlights
How to Check Because this operation can belittle difficult, you may a choose to have this done your Cadillac dealership at Service Department. If you doit yourself, be sure to follow all the you could get a false reading instructions here, or on the dipstick. In heavy traffic -- especially in hot weather. While pulling a trailer. To get the right reading, the fluid should be at normal operating temperature, whichis 180°Fto 200°F (82°C to 93°C). Get the vehicle warmed by driving about up 15 miles (24 km) when outside temperatures are above 50°F (10°C). If it's colder than50°F ( 10°C), you may have to drive longer. I NOTICE: Too much or too little fluid can damage your transaxle. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be sure to get an accurate reading if you check your transaxle fluid. Wait at least 30 minutes before checking the transaxle fluid levelif you have been driving: When outside temperatures are above90°F (32°C). At high speed for quite a while. Checking the Fluid Level 0 Park your vehicle on level place. Keep the a engine running. With the parking brake applied, place shift the lever in PARK (P). With your foot on the brake pedal, move the shift lever through each gear range, pausing about for three secondsin each range. Then, position the shift lever in PARK (P). Let the engine run at idlefor three to five minutes. 0 0 0