How can I determine if my vehicle is compatible with DEXRON VI transmission fluid?

To determine whether a vehicle is compatible with DEXRON VI transmission fluid, confirmation must be obtained through official channels (vehicle manual, 4S store) or authoritative information (VIN code query).

Consult the vehicle manual: The vehicle manual is the manufacturer's official guidance document for that model, and the ‘Maintenance’ or ‘Lubricant Specifications’ section will clearly indicate the recommended transmission oil type (e.g., ‘DEXRON VI’ or ‘compliant with GM DEXRON VI specifications’).

Confirm the year of manufacture of the vehicle

General Motors (GM) has been gradually promoting the DEXRON VI standard in its automatic transmissions (such as the 6-speed and 9-speed Hydramatic series) since 2006. Therefore:

GM models produced in 2006 and later (such as Buick, Chevrolet, Cadillac, etc.) equipped with 6L80, 6T70, 9T45, 9T50, typically use DEXRON VI.
General Motors vehicles produced before 2006 (such as those equipped with 4-speed or 5-speed transmissions) primarily use DEXRON III or earlier standards and are not compatible with DEXRON VI.

Check the transmission model

Check the transmission housing number: The transmission housing usually has a model number printed on it (e.g., ‘6T70’). You can look up the oil requirements for that model number on the official website or in the maintenance manual.
Contact a 4S store or professional repair technician: Provide the vehicle identification number (VIN), and they can look up the transmission model and applicable oil specifications in the manufacturer's database.

Use the VIN code to inquire

Official manufacturer channels: General Motors' official website or official app (such as ‘Buick iBuick’) provide VIN code inquiry services, allowing you to obtain specific maintenance requirements for the vehicle.

What are some cost-effective DEXRON VI certified products that you would recommend?

RAVENOL: Features an ultra-long oil change interval and is suitable for high-end AT transmissions.
SK Lubricants: Uses synthetic base oil + environmentally friendly additives, featuring low viscosity and high wear resistance.
TERZO: Features an ultra-long oil change interval, high wear resistance, low pour point, and coverage for a wide range of transmission.

If you need to use Dexron 6 transmission oil, you can refer to the above information, including recommendations for cost-effective products.