Slide a drain pan under the oil pan, remove the drain bolt in the front of the pan, let drain until it stops dripping. Move the drain pan back a bit and repeat for the rear drain bolt. Inspect the little plastic gaskets on the drain bolts- if they are cracked or broke, replace them(They're less than $1).
Please reinstall the drain plugs tighly, you won't like what happens if you don't.
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Remove the filter, and be sure that the rubber gasket comes off along with it.
Fill the new filter with oil, and also dip your finger in oil and run it along the rubber gasket on the new filter.
Double check that the old gasket is removed and not stuck on. Again, you will not like what happens igf you double gasket the filter.
Re-install filter.
Remove the oil fill cap on the drivers side valve cover, and dump in what's left of the bottle you used to fill the filter, plus be sure to add 4 more quarts of oil. Replace cap.
Start the engine and let it run 5-10 min. Check for leaks. Shut it off then pull the dipstick, wipe it off, re-insert it, then pull it back out to check the oil level. If it is still a little low, add a 1/4 bottle and re-check. Do this until it is full. (You should not need to add more than half a bottle to top it up.)
As a final note. Please to not use a Fram or Penzoil filter. Be kind to you're engine and buy a Motorcraft, Wix, or Purolator filter.
I prefer Castrol GTX, but any quality name oil will do. The factory reccomends 5W30, but if you have a lot of miles on youre motor, try using 10W30.