DIY Used Oil Collection Why Should I Recycle Used Motor Oil Recycling used oil keeps it out of our ground water supplies, saves energy and allows it to become a valuable, reusable resource. You can make a difference by recycling your used oil at the drop-off location nearest you. Where To Drop Off Used Motor Oil Auto part retail locations are one of the largest sources of oil collection. The large national auto part retailers allow do-it-yourself (DIY) customers to drop their used oil off for Safety-Kleen to collect and dispose of properly. With a nationwide fleet of trucks, tankers, rail cars and barges, Safety-Kleen collects used oil from over 10,000 of these retailers' sites. To get detailed information on drop-off locations and other useful recycling tips for used oil and used oil filters please visit www.earth911.com or call (800) 323-5040.