I just got a TD 125 from Ebay and I'll need to change the bearing oil. I read several older threads about what type to use, and the recommendations seem to vary quite a bit. I was going to use 3 In One SAE 20 for electric motors, but I've had recommendations for sewing maching oil as well as a special grease designed for this purpose. I also have some Linn black bearing oil that I could use. This is the first time I've worked on a TD 125, so I would like to know some of your current thoughts on this. I would not imagine that you will damage the bearing using any of the above oils, but maybe there are some newer alternatives out there? I want to do it right the first time. Thanks!