DevonCbx wrote:I had asked in the past about using synthetic oil. I am running a 15W 45 Mobil 1. It really is amazing how much quieter the motor sounds and how easy the bike shifts. I will continue to use this oil.
Thanks

Great it is all working out for you.
I think we went through this some time ago, but below is a video link of Dave McMunn taking the cylinder off my 80 for the first time at somewhere between 85,000 and 100,000 miles (estimate because the speedo cable was broke for 5+ years)
http://www.youtube.com/watch?v=O_u-D4vfUjw
I used Mobil 1 15w 45 since it was introduced, did not change oil at recommended times and this motor spent alot of time near or above redline......yet in the video clearly shows the cylinder and pistons in near perfect condition after all these miles.
Only downside I noticed with Mobil 1 15w 45 over all these miles was a slight wetness/ever so slight weeping at the valve cover gasket and a few other gaskets. Infact this stopped da dawgie from winning all the rally bike shows it was entered ...

...actually I do not recall it ever being entered ....but could be wrong.
This type of "first hand" tangible experience/results you reported and by other CBXers related to CBXs trumps any article in my view and is one of the most important facets of this site we all can share and contribute.
Great to hear feedback like this......so many ask for help on our forums .....and we never hear from them on the matter again so no one learns what works and what does not.
Mike