I was just cleaning behind and under my washing machine and noticed a large amount of oil underneath. I haven't had any problems with the machine running at all. It's a Kenmore 70 series Super Duty Plus. I'm not quite sure of the age as it was a hand me down from a family member. I'm just wondering if this is something fixable, how I determine where the oil is coming from, and is it worth fixing or would it be more cost efficient to replace the machine? Thanks for the help!