10/40 or 10/30 oil?

I cant seem to find a search for this. My Blade is one of them that is burning oil. I currently have 10/40 semi in and was wondering if it will use less if i use 10/30 as the service book suggest? If so is it also semi synth that i need?
Thanks

 

I use 10/40 fully synthetic Castrol and I have no oil burning issues. Main dealer also uses 10/40.

 

Is the clutch ok with fully synthetic?

 

Apparently some bikes dont suffer, interested to see if some oils burn slower with affected bikes

 

Complete myth that fully synthetic makes the clutch slip

 

Motul 300v 10w 40 every 6k miles ... doesn't use a drop.

 

This all the time.

 

A mate was burning 10w 40 fully syn in his... he has swapped back to 10w 30 semi syn and he is burning less.

 

It's great stuff... apparently it is good for 10k miles in the blade! (not that I run it to that mileage!)

 

I still change it every 4000 miles.

 

Waste of money doing that.

 

It's all personal preferance... Each bike is different and takes to oil in a different way it's just finding the one that works best for you not everyone else.

 

got some 10/30 fully syth coming so will keep you posted. Thanks

 

Just dropped my oil so glad you asked this k&n filter 10/40 castrol oil semi £38 from m&p I don't do a lot of miles and not big ride outs to be honest any good or go fully rr5 one of the fast repsols that is

 

Oil in but not been out yet, Im going to find a quiet lane and blip it as you can normally see a touch as in the video on youtube

 

£35.99 free post e bay love it fully synthetic