[tracepk]

I was also told by one employee that I would void my warranty if I used a non-Dexos 2 oil. Not really confidence inspiring but they were willing to listen to my concerns.

Any time anyone tells you that doing something will "void" your warranty give em the bird. The magnuson moss act of 1975 dictates that no manufacturer can void a warranty for altering a car, and only if there is undeniable proof that a modification caused a malfunction can it be denied as a warranty claim. If your window switch goes out and is covered under warranty and they tell you they wont fix it because you use the wrong oil, get a lawyer you have free money waiting for you in the form of a lawsuit.