I was out in the trails with my running partner: Ron from Shawnigan Garage, and we were talking about oil change intervals. This is such a confusing topic for vehicle owners. Here is my take: most modern vehicles have maintenance monitors to warn you when it is time to get serviced. Just trust the computer. I hate to say that, and I don't say it often, but the manufacturer put a lot of R&D into that system, and it works.