If I may add, sir bobcas, bringing in of our own oil are also being done by a number of strada owners and club members, that includes me, and are permitted by the casas here in Metro Manila.
So, sir G01, I cannot see any reason why your casa in Baguio will not allow you to do so except that they are protecting their profits.
Isn't this casa in Baguio among those who unnecessarily changes the gear box and differential oils at 1,000 km PMS? Hmmmm.... aside from protecting their profits, also padding their profit? Tsk, tsk, tsk.