Here's the response I got from Matt Simianier concerning the odor of the Resilience #1 valve oil:
"...It has 33% more cutter in then the #2 as well as the inhibitors. You may have a faint smell from that. But the PAO is all synthetic and the solvents are highly refined. Some days I can smell it more than others but as far as purity it is the purest I can find. All synthetics are petroleum based at a certain point and then changed from manufacturing process. At least all of the ones I know of."
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)