Hi this is my first pregnancy and I lost my mucus plug and I'm crampin bad I'm 38 weeks and my obgyn won't induce me so I want to know is castrol oil safe to use to induce labor

No castor oil is not safe. Pregnancy won't last forever, please let your labor come on naturally.

I've been to the dr and I'm not dialated at all I was told by someone at the doctors to use castrol oil that it will help with getting my contractions closer together

It will also cause severe painful diarrhea as well as fetal incontinence. That means that it could give the baby diarrhea as well and that is very dangerous to the baby.

You are only 38 weeks along. While you lost your mucous plug it can still take a few days to a couple of weeks for proper labor to start.