The link has some instruction for how to remove the agitator. you can clean it, if you can remove the agitator, check where the oil/grease come from. clean it as much as you can, otherwise you may need a new machine, I clean it twice before, remove all grease and oil, but soon it come back again. it is from the breanig, my washing machine was about 15 year old when it happen. I end up buy a new one.