Hello everyone, my apologies if this has been covered before. I have a 2016 Cruze limited (1st Gen body) with the 6t30 transmission. I am very close to 45k miles and I was preparing to do a trans fluid exchange. I called the dealer, gave them my vin, and after a long wait the guy told me they no longer carry trans fluid in individual quarts, all they have is bulk fluid and it's not for sale. What gives? When did this become a thing? I've heard of people being very happy with the amsoil fluid, will I run into any compatibility issues mixing that with the oe fluid already in the transmission? I'm not interested in going through the hassle of a flush I just want to do a spill and fill. Thanks