Originally Posted by
bbocaner
No, usually much heavier.
I think I was a bit confusing about this. What I meant to refer to is what's often called "rotor spindle oil", which is very light oil for oiling the rotor bearings. I don't know that it matters much what sort of oil you actually drip down onto the rotors themselves, though a heavier oil will stick longer and better serve its purpose of inhibiting corrosion.
Gary Merrill
Wessex EEb Bass tuba (DW 3XL or 2XL)
Mack Brass Compensating Euph (DE N106, Euph J, J9 euph)
Amati Oval Euph (DE 104, Euph J, J6 euph)
1924 Buescher 3-valve Eb tuba (with std US receiver), Kelly 25
Schiller American Heritage 7B clone bass trombone (DE LB K/K10/112/14 Lexan, Brass Ark MV50R)
1947 Olds "Standard" trombone (Olds #3)