BlackCat81 wrote:Infiniti considers city driving severe duty. Not saying you can't go 7,500mi on an OCI, but I'd definitely use a better quality filter. I don't know what your dealer charges for an oil change, but we charge $39.95 for one. Obviously if something is screwed up during that process, the dealer is then liable for the repair. As important as quality oil and filter are, I guess I just don't understand the logic of trying to push the limits. I apologize if I came across as jerk in my previous post, it wasn't my intention.
I'm with BlackCat. I can see the motivation for going long as possible between changes if you do your own changes and don't have a lift in your garage. However, an oil / filter change is the LEAST expensive of the maintenance required for our cars and oil is the life blood of the engine. If I bring my own oil (Mobil 5w30) to the dealer, they supply a new OEM filter, new washer, and do an inspection for about $45. In South Florida, we're in summer temps all year long. Add to that the time spent stopped (10-15 min) at the draw bridges in 90 degree heat with the air con running, and extending the time between oil changes just seems wrong.