Originally Posted By: addyguy
Originally Posted By: Art_Vandelay
Originally Posted By: Kira
To HMobil 12460: You said, "Pretty hard to beat Motorcraft oil and filters for a Ford." Is that true? The reason I ask is that a pal just got a 1997 F-150 4.6L. The only product which looked better than average in this vein was a Subaru oil filter someone cut open and depicted on this board. It looked carefully constructed. Many have looked average and there have been more than a few flimsy looking ones. As far as oil goes, I'd assume there'd be several good ones out there. Kira
Your friends 4.6 takes the Motorcraft 820S filter. It needs the silicon anti-drain back valve to avoid dry starts. Start one up in the winter, using any other filter and you'll hear noise. I have the same engine and a long time ago I put a Mobil 1 filter on it. Couldn't believe how bad the start-up sequence was. Never ever again.
If you search the net there are tons of posts on this subject. Ford knows exactly what they're doing by specifying that filter.
Weird. I have an Mobil 1 filter on my Duratec-30 powered Tribute, and I've had 'weird', noisy starting all winter....might not be in my head after all....
Throw an 820S on there tomorrow. You'll be happy you did. If I'm not mistaken every application for which Ford specs an 'S' filter has that potential issue.
Also, I believe the bypass valve is on the opposite end of the Ford spec on a Mobil 1 filter. Ford wants it on the base.