While oil is fluctuating all over the board in terms of costs- this crude, was free today. GMC has zero maintenance cost for the first three years of ownership. They have really stepped up their customer service game, in that I was even offered a comparable loaner vehicle to have for the day. Previously unheard of.
I like the "free" maintenance, ultimately I paid for it in the cost of the vehicle. I am not so naive to think there is any free lunch these days but it was nice to not have to pull out my debit card to pay for this service today...