Review on ACDelco GM Original Equipment 10-9243 Dexron VI Full Synthetic Auto Transmission Fluid - 1 qt: Top-Quality Performance for Your Vehicle by Richard Dean

Had to make a few calls but this liquid mixes and changes all numbers back to III. Power steering pump replaced, automatic transmission repaired. Here's the thin one - you can mix it with III or replace III with VI. The gearbox shifts beautifully and the power steering pump is quiet. Hope this helps someone.