I have changed my oil 3 times, and it is now due a 4th change. Ever since 1500 miles have used Mobil 1 and have had no appreciable oil volume loss. I have been searching for the K&N oil filters but have not found them yet. The Oil pressure at startup is between 60 & 70 Psi until warmup, (then goes to 15-20 @ idle and 25-35 nmormal operating range) and there are some of the cheaper filters that will not stand up well to that startup pressure. Fortunately the MOPAR filter that the dealer has used up until now have worked fine and show no signs of malfunction or leaks. I still plan to go to the K&N filter when I find a supplier.
Alan