i use castrol power 1...gold one...not bad..nice one..RM25 only

Bro, is the above full syn?

Does feel anything around 2500km?

For example engine kasar or high vibration when top speed / when let go throttle when slowing down or rasa engine berat or others

Just collecting feedback, i gonna use other EO soon what i m using now finish stock already...

but if u take notice when the EO is new or far from reaching your change EO you wont feel vibrations 1. It is actually some alert for you already, not to push the bike liao. Bcos now less protection to your engine as the oil already breaking down. For me, I ll change lo bcos

1) u not goin to save much
2) u r killin the engine bit by bit
3) i not using air filter, so i guess there is a lot of dust of about less than 30 micons which kenot be filter by air filter already accumulated a lot tat cos the damage to engine in long run ( can find this V5 )
4) pomen say feel your bike engine (haha)

So your choice, i just providing info for you....

any sifu can add or correct me....