Assam u allaikum.
need experts advise.
which grade engine oil is best for suzuki swift 2017 dlx manual with 133k mileage.
bought car 3 months before. currently using gtx 20w50. is engine oil can impact on fuel average?
getting fuel average in city 7.5km/L short route approxe 3km daily running and highway 12.5km/L.
please advise which engine oil should i use & how to improve fuel average?
thanks in advance.
