Oil is a nonrenewable resource, and efforts to reclaim used motor oil have important economic and environmental benefits. With use, motor oil becomes dirty, and performance additives become depleted. Re-refined oil is used motor oil that has undergone additional re-refining to remove contaminants, followed by a process that restores performance additives.
Laboratory tests show no discernible difference between highly re-refined base oil and base oil from natural sources, making them equivalent in quality and performance. It undergoes the same comprehensive testing and meets the same quality standards as non-refined lubricants in order to receive certification by the American Petroleum Institute (API).
Re-refined commercial oil contains the API certification mark, assuring you that the re-refined oil you are buying has been proven to meet auto manufacturers’ specifications for optimum engine performance.
Ultimately, choosing re-refined oil over non-refined is the more responsible choice. Users enjoy the same quality and performance while simultaneously benefiting the environment. This choice reduces America's dependence on foreign oil, eliminates waste material and lessens the demand for extracting new resources.