Dex cool
dextron II (2)
DextronDextron
Dextron III or it's equivalent.
Dexron III should be a safe bet.
manuel says use ONLY fluid labeled DEXRON-III made for this transaxle
Dextron/mercron. Pull the dipstick & read what is imprinted on it.
Any Dextron past version three should be compatible with what you should be using.
Maybe use some kind of siphon pump... It would be a complete mess trying to remove the transmission oil pan. Or maybe just go in and get a fluid change.
4L60E
The 2001 Buick Regal has a 4-speed automatic.
The 2004 Buick LeSabre uses Dexron III or Dexron VI automatic transmission fluid. It's important to check the owner's manual or consult with a professional to ensure the correct fluid type is used, as using the wrong fluid can affect performance and longevity. Always consider any specific recommendations or updates that may apply to your vehicle.