Shell Rotella Snythetic 5w40 oil in CB1100

[Ulvetanna_imp]

I am quite sure Shell Rotella T will not hurt your motor. Too many people on too many forums using it with no adverse effects.

I don't care what any one eldse uses in their motorcycles, their business. Shell, Amsoil, Honda, Yamalube, oem filters, K&N filters, Bosch filters, they all have their advocates and detractors but bottom line is it's more important that it is changed on a regualr basis than what it is changed with or to. I am not personally aware of any catastrophic engine failures due to oil or oil filter types in the last 45 years.

I can tell you up until Dec 31, 2006 Honda recommended 10W40 for all of their 4 stroke motorcycle engines. As of Jan 1, 2007 Honda has recommended 10W30. Why that change of recommendation and why on that date is any body's guess. Some has said it's for emissions, or for gas mileage. Who really knows.

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All I know is that for my 2006 ST 1300 Honda recomends 10w40 and for the 2007 ST 1300 which is identical other than paint, it recommends 10w30. My 2014 CB1100 DLX they recommend 10W30. ALL Hondas since Jan 1, 2007 they say 10W30. Why? who knows. They do make allowances in the owners manual and service manual to allow 10W40.

Bottom line, I recommend that you use what you have faith in and are comfortable using.

Yep just make sure it's the correct grade and JASO-MA. If in doubt use exactly what Honda specifies.

Forgot to mention Yamaha will now provide 20 years or 100,000 miles warranty if you use only Yamalube oils. Maybe there is something to the OEM recommendations.