In most Cadillacs built in the last decade, Dexron VI automatic transmission fluid is required. Older models may specify Dexron II or Dexron III; always verify via the owner's manual or the transmission dipstick label.
Cadillac uses GM-built transmissions that typically specify one of the Dexron automatic transmission fluids. Because Cadillac model lines span from luxury sedans to SUVs, the exact specification can vary by year and transmission family. The safest path is to consult the owner's manual, the dipstick label, or a Cadillac dealer for the precise specification for your car.
Fluid guidelines by era and transmission family
The following guidelines reflect common Cadillac configurations. They are not a substitute for the exact specification printed in your owner's manual or on the dipstick.
- Modern Cadillacs (approx. 2006 to present) with GM 6-speed or 8-speed automatics, including 6L45/6L50, 6L80/6L90, and newer 8-speed units: Dexron VI automatic transmission fluid.
- Front-wheel-drive Cadillacs from the late-1990s to mid-2000s using the 4T40/4T60 family (like some CTS, SRX iterations): often Dexron III or Dexron II as originally specified; Dexron VI is commonly accepted as a replacement, but check manual.
- Older rear-wheel-drive Cadillacs with 4T60E or 4T65E transmissions (1990s to early 2000s): Dexron II or Dexron III were typically specified; Dexron VI may be used as a replacement per GM guidance, but confirm.
Conclusion for this section: Dexron VI is the current standard for most recent Cadillacs; older models may require Dexron II or III. Always verify for your exact model/year.
What to do to confirm for your car
Before performing a change or topping up, verify the transmission fluid specification using official sources or a dealer. The steps below help you confirm the right fluid.
- Check the owner’s manual section on transmission fluid. It lists the exact specification and any substitutions.
- Look at the transmission dipstick or the label under the hood for the ATF specification stamped by the vehicle manufacturer.
- Enter your VIN on the Cadillac or GM service site or contact a dealer to confirm the specification for your exact model and year.
In practice, many Cadillac owners use Dexron VI for most models, but a few older or specialty transmissions warrant a specific Dexron variant. If in doubt, err on the side of Dexron VI and have the service performed by a qualified technician who can verify the transmission type.
Summary
Most modern Cadillacs require Dexron VI automatic transmission fluid. Older Cadillacs may require Dexron II or Dexron III, depending on the transmission family and year. Always check the owner's manual, the dipstick, or a dealer to confirm the exact specification for your vehicle.