I have a Brother I have had for about 30 years. It sews about any thread I put on it. I am sewing now with some thread that was given to me. It is some Coats and Clark and some other brands. I set the spool behind the machine and put an empty bobbin on the thread spool and let it run around it and through the machine. I also use my serger cones. If thread gets linty spray it with static spray. That is what we uswed in the factory I worked in.