I have a 2006 CBR 600rr and I want to know which oil is the best to use? I wanted to put in synthetic Repsol but they only have 10w-50 in that and the manual calls for 10w-30 or 10w-40. Is 10w-50 synthetic Repsol ok?

THANKS

 

I wouldnt use synthetic oil until you have at least 3000 miles on your bike. After that synthetic is good and repsol does make a 10-40. Thats what I use.

 

Ain't nothin' wrong with good ole' Honda brand oil!