I found this on the Mobil website..... www.mobil1.com
http://www.mobil1.com/USA-English/MotorOil/images/spacer.gifQuestion: Oil Filter Change Interval with Mobil 1 Extended PerformanceI currently use Mobil 1 in all my vehicles. I change the oil and filter every 5,000 miles. If I switch to Mobil 1 Extended Performance should I continue to change the filter every 5,000 miles or should I wait to change the oil filter when I change the oil at one year/15,000 miles? -- David Willian, Muncie, IN
http://www.mobil1.com/USA-English/MotorOil/images/spacer.gifAnswer: Mobil 1 Extended Performance is designed to go 15,000 miles with any high quality oil filter available in retail stores.
http://www.mobil1.com/USA-English/MotorOil/images/spacer.gifhttp://www.mobil1.com/USA-English/MotorOil/images/spacer.gifhttp://www.mobil1.com/USA-English/MotorOil/images/graypix.gifhttp://www.mobil1.com/USA-English/MotorOil/images/spacer.gifhttp://www.mobil1.com/USA-English/MotorOil/images/spacer.gifhttp://www.mobil1.com/USA-English/MotorOil/images/buttons/button_askaquestion.gifhttp://www.mobil1.com/USA-English/MotorOil/images/spacer.gifhttp://www.mobil1.com/USA-English/MotorOil/images/buttons/button_questionarchive.gifhttp://www.mobil1.com/USA-English/MotorOil/images/spacer.gif