Geoff(WGHarper),
Very interesting point Geoff. I have been watching with interest in reference to this timing chain issue. I too have this "Problem" with my 2.5L, although from what I keep hearing, many are saying it's not actually anything that can manifest itself into something terrible. Anyway, based on your comment about the oil filter with the silicone valve, you may have a very valid point. I never take my car to Ford for oil changes therefore no Ford filter. I phoned Ford and asked about the silicone valve and was told that Ford has been using that in their filters for the last 30 years.... Ya whatever. My next filter will be a Ford filter ($9.00 Canadian), and we'll see if it makes a difference. Something tells me that Ford would say they had a built in flux-capacitor with a heffer-rod if in their filters if they thought it was going to get you off their back.... I'm just sayin.
