Dear All,
I own alto 2003 LXI model. currently 93000Km in Odo. Currently, the vehicle's engine sound and vibrations are felt on the higher side. Also while checking the few last service bills i found that the oil used is 5w30. which is not the recommended (may be OK) one. As per manufacturer docs. it is
20W40, 20W50 (refer to attachment). Will synthetic oils provide smoother performance? I request my fellow mates to kindly give advice on which engine oil to use and best brand for alto.
thank you.