Yeah, I wouldn't go longer. The engines are a bit different, but I was told by the dealer to keep my OCI to 3k on the Equinox 2.4L DI. This was as it was in the shop for what would have been a $2k engine repair if not under powertrain warranty. They said they've had few problems with people changing at 3k miles, but a lot with people going longer (I was going 6k or so - still with a lot left on OLM).