Does Castrol Oil Work

Hi,
I just wondering if the myth of drinking castrol oil to induce labor really works? Also, are there any other natural inducing methods? Again, my sister wanted to know!
For anybody who read my earlier post about her baby being very big, she found out today that the baby is just really really long! She still has to see the doc to see what they plan on doing (inducing, c-section, etc).