I have a Mira Eis 2012 model 98 thousand driven. I bought it at 70 thousand odo and the previous owner was using 10w 40 shell oil. I have continued using the same oil. The engine doesn not decrease oil level. Should I shift to 5w 30 or continue using 10w 40 oil. My car gives 18 to 19 km/L in winters and 14 to 15 km/L in summers with ac.
You sure can try it, there is no harm. 5w30 is all weather oil and can be used through out the year, your mileage may increase a bit.
Ok i will. Thank you