Can I use 10w-30 on my Honda RC51 RVT100R?

Question

I have a 2000 RC51. A little insight if you're unfamiliar: 1000CC water cooled V-Twin from Honda. Redlines at 10500RPM. The engine temp usually never sees past 230 degrees, unless I'm stuck in traffic, which rarely happens, but can.

Anyways. I'm wondering if I could switch to 10w-30 to help circulate the oil better. I normally use 10-40, but a buddy of mine bought 10w-30 for his and noticed it a lot thinner and looks like it would circulate a lot better than the 10-40. (He's using Lucas Motorcycle oil).

The temps here are anywhere from 30-90 degrees. I usually ride when it's above 50.

My question is, can I switch to 10w-30 for the colder months ahead? I'm using synthetic motorcycle oil (usually Mobil1 or something along that line). And will 10w-30 hold up in 90-100 degree weather?

Answer 1

Yes I answered it in the other forum but he didn't like my advice

Check out the brilliant answers he recieved in the motorcycle section

I will say it again Use Castrol R4 5/40 Full synthetic superbike oil

I ran this oil in my Aprilia and my RC51's

Answer 2

Here is one for you 51!

Emailed.