1995 F-150.246000 miles.4.9 I-6.I bought this old truck in March.I got the Purolator filter and Pennzoil YB 10w30 deal back then @ AAP.Last week I changed the oil this time I used a Motorcraft filter.Now I'm getting start up noise for a brief period.Didn't do that with the Purolator.Anyone understand why this would happen?I've been using Napa Gold on my other engines since I discovered local Napa has half price sale every Saturday.I used the Motorcraft because I happened to be @AAP nad knew it was an easy grab and go that day.Should I get rid if the motorcraft?