What is the part number for the Mobil-1 oil filter for our trucks?
Who makes this filter or does Mobil make their own filters?

M1-303

I heard it's made by Champion Labs. Don't remember the specs though.

Oilguard.com has a filter for our trucks. It is made by Champion Labs, same as the Mobil 1 filter. It is rated virtually the same (within 1 micron) as the Mobil 1, made by the same manufacturer, and sell for somewhere around 3 for $25. Much less than the Mobil price. I will be using them for sure, great filter and price. SPICER

Thanks