Transmission Fluid--Which to use?!?!?!

[Epsilon Plus]

Do the dipstick mod. It will make this much easier next time. Link in sig.

[markny]

On 1/11/2024 at 8:18 AM, Cold North Country said:

-I have been wondering the same thing for both the Tranny and the xfer case.  What actually is put in at the factory?

-Summit Racing stocks 2 different ACDelco Dex VI, one says Mineral in the specs but nothing on the container, and the other says Synthetic on the container.

 

Mineral:

ACDelco 10-9395 ACDelco DEXRON-VI Automatic Transmission Fluid | Summit Racing

 

Synthetic:

ACDelco 10-9244 ACDelco DEXRON-VI Automatic Transmission Fluid | Summit Racing

 

Where did you see the classification of 9395 as mineral as that Summit link shows mineral

[diyer2]

My choice

https://www.amsoil.com/p/amsoil-oe-fuel-efficient-100-synthetic-automatic-transmission-fluid-otl/?code=OTLQT-EA