815 ILCS 440/7
No lubricating oil, regardless of its origin, or any product that is a blend of recycled oil and new oil shall be sold, offered for sale or delivered for use in an internal combustion engine unless such product is substantially equivalent to new oil for the particular end use for which it is labeled as determined by test procedures promulgated by the Federal Trade Commission as prescribed under Title V, Section 383 of the federal "Energy Policy and Conservation Act" ( P.L. 94-163). This Section shall take effect six months after the promulgation of federal standards concerning the use of recycled oil as a lubricating oil and the use of recycled oil as a fuel oil, or six months from the effective date of this Act, whichever is later.
815 ILCS 440/7