In my 2007 Torrent I used valvoline maxlife in the trans, Mobil Delvac 75-90 in the diff, and the factory fill oil called Versatrak for the tcase. I think your model year uses Versatrak in both the diff and the t case.
2007 Pontiac Torrent
99500 out with factory fill. The gear lube did not look good. In with supertech 75-90 to flush everything out after a week of driving. In with Mobil Delvac 75-90 at 100000 and counting.
I bought a Aveo that had Falken tires on it. The car was quite noisy. Which I assumed was from lack of sound deadening material since the car had very low miles. The noise sounded like a wheel bearing noise but at all four tires. Needless to say I put winter tires on the car and the "wheel...