G.P.O.

G.P.O. is a heavy‑duty spot remover developed for commercial laundries, but it’s just as handy in any laundry room The liquid is a solvent blend that breaks the chemical bond between fabric fibers and oily soils, grease, paint and oil. 

Spray on stain, followed immediately with normal wash (spray only, no rubbing/brushing needed)
Not safe on printed fabric, wool and silk - Use a well ventilated area