Irrespective of model year or odometer reading, if your engine is in pristine condition, then you should immediately switch from thick oil to thin oil.
Main haera'an Hoon k aapki car 20w-50 p chalti kaisay Rahi Hai? It's extremely thick oil for a small, 660 cc engine.
If going for 5w-30, API SN, fully Synthetic Engine Oils, I would only suggest following 02:
Total Quartz 9000, or ENEOS Sustina!
(Choose between these two, but make sure that the oil which you are buying is 100% Genuine and original)
However, I would personally suggest you to even go for 5w-20 (or may be even 0w-20) for peak performance and best fuel economy. And trust me, these 02 grades won't damage your engine. I.A.
In 5w-20, or 0w-20, API SN, Fully Synthetic Engine Oils, you can select between following 02 brands:
Shell, or Caltex Chevron
(Again make sure that oil is 100% original and Genuine, and, Shell is the Best!)
First go for complete engine flush using Liqui Moly (or any other reputable brand), and then change oil grade.
I hope, it helps. Thank you.
