Redhawk, thats not proof of anything. If you had read some of those threads you would find me there proposing someone do an experiment to prove there theory that all the oil is pumped up in the heads thus leaving the oil pan with only a half a pint of oil. No one replied back! You know why? Because its not true! If they performed the very simple experiment I proposed which would either prove there theory or disprove it, they now know its a bunch of BS. There is no oil system design flaw with the Duratec! What there is however are operators of a vehical that will not accept responsabillity for there own actions. Its always somone or something else at fault. smile and as far as the redesign I beleive I mentioned the bypass valve. I think it was stated the bypass valve was redesigned so it would not get stuck so easily,so the filter would not be blown by too high oil pressure.