I'll never understand why supposedly knowledgalbe people will use an inferior filter.
Really, you'll use a 15,000 mile 'severe' filter that does not work as well over a filter that FILTERS better?
What is the point of, oh, filtering if you do it wrong?
GA, I have a friend who does top of the line everything for his vehicle. and then throws it all out at 3,000 miles.
Go figure.