Does anyone know what the correct part number is for a Mobil-1 oil filter? I've found K&N's oil filter part number for the 4.8L, 5.3L, 6.0L, and 6.2L (one filter fits all), but I'd like to score a part number for the Mobil-1 filter and stock up on a few of 'em, plus some six-packs of Mobil-1...