I just acquired a new to me Pathfinder with 170k miles and now I need your help.
It has some maintenance records, but nothing to great I have to say. So I want todo some maintenance stuff to avoid problems. After all the truck is just broken in...
I will do all the work myself and I'm handy, but never worked on a pathfinder before.
- replace manual transmission fluid, does anybody have a writeup with pictures for this please? I love pictures... What kind of oil do you recommend?
- replace transfer case oil, what kind of oil do you recommend? And a writeup with pictures would be great too

- re grease front and rear differentials, again what kind of lube do you recommend here? I won't tow anything. Just basic 4x4 use in the snow
- engine oil change
- diagnose the check engine light, it just passed smoke. So I guess it's something else. Maybe needs some new spark plugs. Still searching for a codereader...
- tachometer is not working, maybe a sensor? Could be related to the check engine light
- air filter
- the left side valve cover seems to seap (oil burns off before it hits the ground). What could be the cause for this? On my old passat it was always the cloggled PCV system. So before I replace the valve cover gasket I want to make sure I fix the cause for the leak...
- the seats are really beaten up front and rear. Anybody knows about some good and cheap cover to put them over?
thanks for your help and time
