Join Date: Dec 2009
Location: Mount Hope, Ontario
I bought my 06 F-250 diesel truck used last Feb. from a dealer.
When I test drove it, it started and ran fine.
I closed the deal and the dealership, not Ford, said they were going to service it.
I picked up the truck the next day and after a few days of driving it, I noticed it was 'lazy' to start.
A good friend of mine works for the Toronto City works, he is a lic. gas/diesel mechanic and a teaching mechanic, so I gave him a call, as I know their fleet includes Ford and other diesels.
When I told him the truck was slow to start, which I didn't notice when I test drove it, the first thing he said was to go and look at the oil filter!!
I opened the hood and "Wix" was printed right on the housing cap!
He told me that they encountered the same issues shortly after getting the new 6.0 motors. He explained that the Wix filter does not fit as well as the stock filter/cap and it allows oil to drain out or the housing after the motor is turned off. Since our injectors are driven by the motor oil, the slow start is caused as the filter housing has to fill back up! He added that since they don't fit as well, the oil filtering quality is 'questionable'.
To add to my issue, my stock filter housing cap had been thrown out during the service, as the Wix comes with it's own, but as it is shorter than the stock cap, I had to go and buy a new cap from Ford for $92.00!!!!
I installed a new IH filter along with the factory cap and no more lazy start up!
He said that the best filter to use in the 6.0 ltr are the Motorcraft filter(s), or the IH filter(s) since, as mentioned above, the motor is an IH unit. He added that they had not tested other filters, but to definately stay away from Wix.
I use IH filters in my truck now, as they are approx. 50% less than getting them at Ford, plus I know they will fit and perform as well as the Ford parts.