I have a Chevy Traverse, and it's a newer one. I've heard they're making them harder to work on unless if you're a certified mechanic. I'm not really a gear head, but I can change the oil in an older American car. (I learned on a '73 Chevy Cheyenne and a '92 Ford Tempo.) I can't do foreign cars, nor can I do the newer models. So I let them do it. I've got enough left to go a little while longer, but I'm overdue on the mileage.
Oh, well. I'll wait until next week. Gotta pay bills and stuff.