Motul is the best in engine oils and lubes and coolants for bikes.The engine oil of motul comes in different grade and of different categories like mineral oil, semi synthetic oil , fully synthetic oil and factory line oil.I have pulsar ns200 and pulsar 220 , on both the bikes I use motul .It makes the engine as smooth as butter , the price of oils are on high side but it has value for money also.The motul 3100 engine oil comes as mineral oil which is good for small 100 cc bikes, then comes motul 5100 , which is the semi synthetic oil and is good for 150 cc bikes and gives great smoothness.Then comes motul 7100 fully synthetic oil and costs around 700-800 bucks.Then comes the motul 300v factory line oil, this is the best among all, it costs around 1000-1200 bucks per 1 litre bottle.The motul 7100 and 300v are both for 200cc and above bikes.No other brand oil can give such a great performance , I have tried the bajaj oil , bharat petroleum nxt oil, valvoline, shell, castrol , none of them were close to the performance of motul.So I will suggest for only motul.