Shout Advanced Aerosol Spray,gets out even dried in motor oil, or any kind of oil. You could also try Dawn dishwashing liquid. I know for a fact it gets out dried in cooking grease and I have tried it on motor oil,but I think I had to wash it more than once, I can't remember. The trick to getting any kind of oil out is to wash it before it gets dry, I know sometimes that isn't possible,but pre-wash with Dawn and then use the Shout Advanced.