Own a 2011 Equinox LT since new. Diligently changed oil every 5k with Mobil One Synthetic and GM or Premium filters. Of course the motor started losing oil around 75k. GM, was not all smiles like in their ads, but they performed an engine rebuild at 103k, to correct the problem, the piston rings! While they had it, I get a call. Sir, your manifold has a crack in it that's going to get worse. If you agree to pay, we will replace it at a lower labor rate seeing that everything is opened up. Made sense, I gave the ok. Well at 145k guess what? The manifold has a crack in it again. Some say that I am lucky to have a 2011 Equinox go 145k. I take care of my cars, but I don't think I will be caring for a Chevrolet again!