If you go to a quick lube shop, etc, and just ask for "an oil change", they will simply look up your car in the system.. to get the suggested weight of oil, and then proceed to add 5 quarts.
You must state USE 6 QTS!!!! and even then, watch them through the window, or whatever, and WATCH ALL SIX GO IN....
I run 6.5, and I change it myself 95% of the time
Re: suggested oil
5W-30 for the duratec... Mobil 1 (dino or synthetic are always a toss up around these boards.. Though I prefer synthetic for its abilty to protect for longer periods..)
Ray
