Central Pneumatic 2hp 8 gallon oil lubricated air compressor
I sold industrial coolants and lubricants for the metalworking industry for 15 yrs. Older machinery that typically used mineral based oils were seldomly converted to synthetics. The reason is that some synthetics can soften older seals and cause leaks. Don't know for certain if it would be an issue for your compressor. Does the mfg have tech service hot line? Without a factory approval I would stick with the original factory recommendation. (IMO)
please use your imagination to fill in any missing or miss-spelled words!