There's a lot of confusion and I wanna aim for longevity. The fuel economy difference is negligible. Which engine oil should I be using in my 2022 GL Manual swift, 5w30 API SP or a 0W20 API SP.
Keep in mind that mostly driving will be in Karachi's harsh heat and stop and go traffic.
Will the 5w30 offer better protection? As I aim to keep this car for long.
