Engine oil Shell or Motorex

Rotella T6 ! Zero issues.

So far itong si Shell yung may pinaka smooth na oil sakin.

It completely transforms the bike , it resists heating like it almost non existent even after a hard session of riding, performance is consistent in warm up, cold start or all kinds of situation ,fuel efficiency definitely increased, and the acceleration is also noticable better and power is also good compared to when I used to run on liquid gun and on highways the bike totally becomes a beast . I highly recommend shell to my fellow riders, it's the one that completely suits RE engines

I switched to 5w30 shell from 10w30 havoline.

No problems. The engine is a little bit cleaner.

I am using Shell Helix Ultra 5w40, fully synthetic for my Lancer (2006), change it at around 7000 KMs. No complaints, my travel includes short & long distance, very happy & satisfied.

I use Motorex semi-synthetic 4t in all of my KTM's over the years in a 15w50 weight. It has never been an issue. I have used Motul 5100 and 7100 in other bikes before, and I prefer the 7100 over the 5100. It feels like the bikes perform better when the temps rise and I'm really riding them hard.

Why spend more when you can buy Shell Helix Ultra FS 5w40 from Lotus's, Giant or Aeon Big for half the price or less compared bought in petrol stations.

I run mobil1 but my local small engine place that installs and services Generac, Kohler and Briggs swears by Rotella straight 30 weight.

I have a baleno woth 130k mileage and I have been using shell 10w 40 and the performance and fuel avg is great

Everyone has their preferences, at the end of the day it doesn't really matter, just change it regularly. I've used Mobil1, Pennzoil, LiquiMoly, Royal Purple, Rotella and probably a couple others I'm forgetting. No noticeable difference between any of them.