time2roll wrote:
The early 2V seemed to have a period where they were blowing out spark plugs. Not exactly immune to troubles.
Book may call for 5k oil changes but I am doing fine with 10k changes. Based on miles only and now with less use could be a few years between changes. Not an issue IMO.
I would assume all these motors have the exact same oil pump. Oil pumped volume is not an issue.
The 5.4 also had an issue with sludge build up in a oil passage running from the block to the right head. When it plugs you lose oiling of the valves on that bank. From what I've read they recommend frequent oil changes to prevent this from happening.
