Assalam-o-Alaikum
Please suggest the best oil for wagon r 2015 jdm.
I recently bought the car and the performance was 16.5 to 17km/l before oil change and i didnt know the previous oil used in the car....
I have changed the oil and the new oil is Mobil 5w30..... But after oil change the mileage reduced to 15 to 15.5km/l..... Please advice
