As a 2005 F350 6.0 PSD owner with a pending lemon-law suit against Ford, I can provide a real experience with the problem. I purchased my $50,000 truck for one purpose, to tow a 24ft 8,000lb trailer cross country 10 times a year. In my first year of ownership, the F350 left me stranded 3 times and nearly killed my fellow interstate travelers each time. Ford says the truck doesn't have a problem, even though it was towed to a Ford dealer each time. Last Ford I ever buy.