I did a series of spill and fills today on my new to me Equinox LT AWD with the 1.5T and 6T40 transmission. I've done a lot of transmission fluid changes in my day and this might be the worst looking factory fluid I've seen. It didn't smell bad at all and luckily had no forbidden glitter in it. Obviously it would have been more effective to do a cooler line-off fluid exchange, but access to the jiffy-tights was a battle I didn't want to fight. Drain/fills are super simple on these GM products anyway. I've been using Castrol Transmax universal ATF/CVT fluid in my GMs for a year or two with success, so that's what went back in. I also replaced the transmission drain plug with a votex magnetic plug.