It is on the bottom of the engine.
In the pan.
7 quarts
Seven
There is none
7 quarts 5w20
Seven quarts.
Under the timing chain, on the front of the crankshaft.
5w30 or 5w20, depends on what is printed on the oil filler cap.
On a 2000 Durango V8 the PCV is located on the side of the oil fill tube under the cap
that would be 6.0 quarts with filter change
The pcv is located in the side of the oil filler tube and is locked into a notch, turn and pull up will release it , if not changed in awhile may require a little wd40 to free it up.
It should be just above the oil pan on either side.