I am running Havoline 5W/20 in my 2005 Dodge GC. I do 5K OCI's. I will be switching to Havoline 5W/30 on my next oil change to see if it solves a consumption problem. My filter is a Wix 51085. Am I o.k. to use my filter for two oil changes (10K miles) or should I change it every time? If it is good for two changes, should I remove and drain the filter or just leave what oil is in it there? Your input is appreciated.