Oil Eater. ORANGE Cleaner is a ZERO VOC , highly concentrated, water based alkaline cleaner enhanced with the boosted solvency of citrus. This advanced cleaning system has been designed specifically to outperform conventional cleaners on adhesives, petroleum greases, and resins while remaining versatile, powerful, and safe. Oil Eater. ORANGE Cleaner & Degreaser is non-corrosive, non-toxic, and biodegradable.