no haven’t heard of that make. sax repair is not at the top of my expertise but WD-40 doesn’t sound right to me for a sax. trumpet oil is valve oil which lubricates the valves. 15 years in a box….probably pads are all dried out and you’ll need new ones.
Maybe i got meself a Walmart Special sax? Anyways here’s some vids i found the first one pretty interesting, although starts slow, about 15 mins in talks about neck bends pertaining to how Johnny has told us to hold the sax under the arm to save later bills. Also some stuff on neck seal leaks etc. Good links on this vid.
The last of the series is easy neck least tester which might be interestin’ to see. Anyone got any other vid recomendations? Cheers