Since entering the oil recycling industry in 1952 Rock Oil Refining, Inc has become an industry leader helping businesses operating in Wisconsin, Minnesota and Michigan. Whether you are an industrial manufacturer, car or truck dealership, quick lube center, small garage or a recycling center, Rock Oil has an oil recycling program to fit your specific needs. 

Public interest and awareness of environmental concerns are growing everyday. Federal and state legislation governing management practices of used oil and related waste products are ever-changing. Long-term liability will remain a key issue for companies generating used oil and related waste products. Cost relating to the disposal of these wastes can be a burden during the current business climate. 

In the past two decades Rock Oil has developed proven manufacturing processes that supply the highest quality renewed fuel products and coolants to our customers, all manufactured using recycled materials. 

Browse our web site and learn how your business can benefit from Rock Oil's recycling services and manufactured products. 

Used Oil

Nearly any type of used oil is accepted and can be commingled for collection by Rock Oil Refining. Types of oils accepted include but are not limited to lubricating motor oils, hydraulic, gear, transmission, mineral, power steering, brake, diesel fuel and heating oil. Both petroleum and synthetic based oils are accepted.

Products that should not be commingled with used oil and managed separately include used antifreeze, waste gasoline, certain types of waste solvents, halogenated solvents or oils, paint and thinners, tool coolants, cutting fluids, or any type of listed hazardous waste. In some cases Rock Oil can either manage these waste streams or assist you in selecting a reputable vendor to work with.

Rock Oil Refining utilizes a continuous used oil-testing program to screen our customers used oil for non-compliant contamination. Used oil that is found to be off- spec or hazardous due to contamination will be rejected at the point of collection. Our testing program is designed to help our customers with their compliance with Federal and State used oil regulations and to protect all parties involved. The intent of the program is to provide each customer with a proven track record of compliance.

Transformer oil or oil products potentially containing PCB oils must be tested prior to collection on a case by case situation. Contact a Rock Oil representative for assistance on managing these types of waste products.

Generators should contact Rock Oil if there is a question regarding management of waste streams or unknown materials.