I just bought my son a used Shen SB-190 from another member that was in good condition with a few blemishes . In a few places however the finish seems a bit dull or has a milky appearance. I am a guitarist and have my various polishes for my guitars, but since this is an applied oil finish, not sure how to clean/maintain it and reapplyfeed the Oil finish if that is even needed. Can someone make recommendations on what I can/should use. It seems a reoiling would possibly help, such as lemon oil or a fine furniture polish but I don't dare try on my own. I also know there are some vintage instrument polishes out there. Do Oil finishes need to be reapplied or fed, or is polishing on top of them recommended. If you can also recommend what I can use on the ebony fretboard that would help as well - I usually use a special oil on my rosewood fretboards on my guitars to feed/clean them.
I keep a microfiber cloth (typically used for dusting) in basket right by my bass. I wipe it down before and after every practice. I try to be gentle but still get all of the dust off. I have had a few spots where the rosin had built up from the previous owner. I was able to very gently urge those off over time with a slightly damp warm cloth. it took several tries but I didn't want to scrub at it or soak it.
I clean my strings with alcohol wipes I purchased from the drug store. This way there is barely any liquid to mar the bass surface in case of splash or drip. I haven't done anything to the fingerboard except the microfiber cloth before and after practice.
In the 6 months I have had the Shen, following this routine, it has slowly lost some of it's old grime without being abused in the process.
Good luck! What an exciting purchase!

