ZIC X5 20W50 synthetic oil used this car oil in my bike 3 or 4 times experience is overall too good no clutch slipage also gear shifting has become so smoooooooooth engine become more lighter & more powerful gained 10500Rpms
previously was using zic 4T 20w40 semi synthetic engine oil packing was changed by company to zic M5 20w40 after the change of pack i was not getting like same performance which i was getting from zic 20w40 semi synthetic because zic m5 has become to A mineral oil only me was facing too much problems like gear shifting engine heating problem etc... that,s why switched to ZIC X5