error Information on the German Waste Oil Regulation (ALTÖLV) The WD-40 multifunctional product protects metal against rust and corrosion, penetrates in pinched parts, displaces moisture and lubricates almost everything. It even removes grease, soot and other dirt from surfaces. The 360 ° valve allows the can to be held upright or overhead, which means that every application is possible. With SmartStraw, it is possible to flexibly switch between large-area and precise spraying. Repels moisture, removes oil, dirt, grease and soot, protects metal surfaces from rust and corrosion. Easy to use.