Dream about motor oil signifies your need for self-gratification. You are afraid that others will know of your short-comings. You need to accept what you already have and know that that is enough. It is about some imbalance and disharmony in your life. You feel that you do not have the time to do all the things you want to do.
Motor oil dream draws attention to your ability to mesh various aspects of your life together. You are trying to escape from the demands of real life. You need to incorporate or acknowledge certain feminine aspects into your own self. The dream is an indication for getting things done. You are trying to hide the truth.
If you dreamt about motor oil:
There is more to staying fit than eating right and exercising. You can benefit from paying closer attention to everything in your life: how clean is your car? Do you make your bed every morning? How long do you go without doing the laundry? These things affect how you perceive life, whether it is easy or hard, even going as far as whether you are optimistic or pessimistic. Use the force!