My bike's user manual recommends using 1150ml of "Bajaj 10000" 20W40 1.2 litre engine oil.
Needless to say it results in pathetic performance.
So I am thinking of switching to Motul 5100 15W40 ; and this comes in a 1 litre pack.
So my questions are :
Is this 150ml going to make any difference?
15W and 20W oils don't alter the performance, do they?
Temperatures in my place rarely go below 19 degrees celsius