Gotta love an oil thread. I've put 275,000 miles on my last two bikes with Rotella T6, 134,000 on the C14. I have never had any problems with shifting except for the time my shift lever adjuster was loose. Once I started reading about the shifting complaints others had with Rotella, I started paying closer attention and sure enough, just before my last oil change I
think I notice a slight difference in shift quality. I checked my records and it had been 6900 since the last jug of T6. So the next day I put in another jug and it did seem to shift a little better.
So I have always wondered about reports of shift quality as well as various other aspects of the Concours 14 mentioned on the forums that I have never noticed such as poor handling Bridgestones, too short windshield and risers, etc. and I have concluded that I must be an insensitive clod.
Or it could more likely be the fact that I ride three other very different bikes on a regular basis so I am accustomed to very different riding inputs.
As for T6 it has been quite a while so I will post again for the newer members. After some major forum badmouthing of T6 I did a back-to-back Blackstone Labs oil analysis comparison with $21 T6 and Motul's best, most expensive ($54)synthetic and the results did not show any significant advantage for the Motul. In fact Blackstone recommended increasing the interval with the T6 but not the Motul.
