Nissan Motors — Right atf for nissan almera tino

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Please i bought almera tino 2005 make.
The atf is due for refill but i have no idea of the ideal type for the vehicle.
2005 almera tino 1. 8
Again i do here a cracking sound from the engine especially when revving ascending a hill. The fact is that non of my local garages have been able to identify the problem. Someone told me is the exhaust pipe connected to the engine while another said its the manifold issue. Just getting confused by the day.
The fact that the car came without the owner manual it an additional problem.
Please if you could upload the owners manual over my email will assist me alot.
I love the car and would love to give it proper maintenance.
2005 nissan almera tino 1. 8

John