I have Pak Suzuki Wagon R 2015, 95000km driven. Two weeks before all are good and using 10w40 oil until it got hit and all the oil got leaked and I realized when the engine was siezed. It has now overhauled from the chamber side, head is not oppend beacuse it was not damaged. Mechanic recommend me to use 20w50 oil and he pour it, now it has run 800 kms and running fine. Fuel average is the same as previous.
My Question is that it is good to use 20w50 oil onwards as mechanic suggested or should I revert back to 10w40 after 1st Oil change or some other grade.????