Thanks guys!Allofyour comments really helped. Especially the ones on how to actually access the oil filter. Accessing it from the front passenger side corner. And how the weird little cover is really just to let the oil from removing the filter drool down the metal channel and out into a pan.
So I put the fairing back on but cut about an inch off the passenger side corner so my arm can easily access the filter without the fairing digging into my arm. And this is without turning the front wheels at all.
Now I believe the fairing has 3 functions.
1. As a splash guard.
2. To help the general front end aerodynamics AND funneling cooling air THRU the radiators and oil coolers.
3. As a structural member to strengthen the plastic front air dam assembly. As wimpy and flexible as the fairing is it attaches in 6 places four are to frame members.
I'm happy now. So thanks a lot!
Will probably be back as I discover more mysteries of how Nissan does things vs Toyota

Peter
So I put the fairing back on but cut about an inch off the passenger side corner so my arm can easily access the filter without the fairing digging into my arm. And this is without turning the front wheels at all.
Now I believe the fairing has 3 functions.
1. As a splash guard.
2. To help the general front end aerodynamics AND funneling cooling air THRU the radiators and oil coolers.
3. As a structural member to strengthen the plastic front air dam assembly. As wimpy and flexible as the fairing is it attaches in 6 places four are to frame members.
I'm happy now. So thanks a lot!
Will probably be back as I discover more mysteries of how Nissan does things vs Toyota
Peter