Baucom
Gold Member
The factory FL820s filter was gray with round oil inlet holes--it appeared to be a Champ Labs filter. The aftermarket Motorcraft FL820s that I bought to replace it was white with oval oil inlet holes, like Purolator. It appeared at that time (2005) that Champ Labs had a contract to supply the factory filters, and every aftermarket FL820s that I ever looked at had a Purolator base plate. Things could have changed since...I haven't had a Ford since 07.
Baucom: "I do know that the factory FL820S on my 05 F150 was a completely different filter than the aftermarket Motorcraft FL820S that you pick up at the parts store."
I'd be quite interested in hearing about the difference.