1, motor oil is a mixture of several epitaxial hydrocarbons, organic matter, according to the principle of similar solubility, we can also use organic matter to dissolve motor oil, but it is best that we choose organic matter can also be soluble in water, in order not to cause secondary pollution. The most convenient is to choose alcohol, alcohol can be soluble in both organic solvents and water. The higher the concentration of alcohol, of course, the better, preferably anhydrous. Alcohol in the drugstore or in the delivery of chemical stores are available.

I hope my solution can help you.

2、Wash it with gasoline first and then use washing powder.

① clothes on the oil stains available rosin, banana water, gasoline, etc. to scrub, and then put 3% of the salt water soaked for a few minutes, and then rinse with water; ② silk jewelry, if stained with oil stains, can be used to acetone solution gently scrubbing can be; ③ dark clothes on the oil stains, with the remnants of the tea leaves scrubbing can be decontaminated; ④ little toothpaste mixed with a mixture of laundry detergent rubbing the clothes on the oil stains, oil stains can be removed; ⑤ take a little bit of flour, mix into a paste, painted (5) Take a little flour, make a paste and apply it on the front and back of the oil stains on the clothes, dry it under the sun and remove the shell, then the oil stains can be removed.

3、If the oil stain is too heavy, it can be rubbed with alkene and turpentine, and after the oil stain is dissolved, it can be washed with general washing method. Collar at the oil stains, can be used a piece of not less than a cigarette box of skimmed cotton dipped full of gasoline, from the center of the collar to the sides of the gently patted over. Gasoline can not be dipped too little, otherwise not only can not remove the dirt, but will leave a gasoline spot stains not removed.

4, if the stain is oily, not water, we have to "oil to attack oil", with a soft cloth or cotton gauze dipped in gasoline wipe, the main oily color substances dissolved in gasoline, and then transferred to the control cloth. Sometimes gasoline can not be dissolved, replace the ability to dissolve oil and grease stronger benzene, chloroform or carbon tetrachloride and other chemicals on the line. If stained with grease, you can sprinkle some raw flour on the grease properly, and then brown brush along the bristles until the grease is removed. Then, with the cane and so on patting wool hidden, remove the remaining powder, so that the fluffy clean. Ski shirt if stained with oil, with cold water to a little flour into a paste, coated with oil stains, a few hours later, with a brush dipped in water to brush away the powder, oil stains will disappear.