As long as it is not hand quilting thread it's fine to use machine quilting thread on your machine for any sewing. The main thing is the size of the thread. 3ply 50wt needs a size 90/14 needle. 50wt 2ply needs a size 80 needle. The higher the wt of thread the smaller the needle size. I wouldn't piece with anything over 50wt 3ply and that is too thick a thread for me for piecing but just right for machine quilting. It takes a lot of experimenting with thread size, type, and needle size to understand how important thread and needles are to quilting.