[ianik777]

Your owner's manual will tell you what engine oil your car needs.
For NA, Mazda and Castrol are two of the recommended ones.

dont have the manual. its a recond car from japan and same was not found in the car

 

[ianik777]

go

The cap should list a weight for the oil, or look up a manual, I’m sure you can source a digital one. As for brands, mobil 1, royal purple synth, castrol, and Mazda/idemitsu. In my ranger I used castrol. In the Volvo I had, used royal purple. Important thing is to get the weight/visc right, and whether it needs full synth

google saying the below: