A friend has a 2007 Ford Explorer with a 6 cyl engine. He is a salesman so the car gets a good many highway miles. He currently runs Mobil 1 5W30 and asked today if he is ok with a 10K oci. I told him I knew of no sludge problems or such that would preclude this oci on that vehicle but promised to check with forum. Also he's been having the oil changes at the Ford dealer who obviously uses a MC filter. Will that filter go 10K?
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