I guess I'm lazy but, if I must get on my back to remove my undercover and change the oil filter 2X times for every oil change what have I gained? I think I would go 7,500 miles and do 1X oil & 1X filter and be done with it. As a second thought I would go Mobil 1 oil & Mobil 1 filter for 10,000 miles. JMO. ed