UNSPSC 15121530: Heat transfer oil or fluid

A type of heat transfer fluid, generally in a closed loop system, used to heat or cool process equipment. It is comprised of refined mineral oil or synthetic oil with quality appropriate for thermal transfer medium.

UNSPSC 15121530 Heat transfer oil or fluid (Commodity) covers bulk engine lubricants, synthetic blends, gear oils, and diesel exhaust fluid (DEF) that state and local governments procure for vehicle fleets, transit systems, and equipment operations. State and local buyers under this code include state departments of enterprise services and transportation, county consolidated governments, municipal transit authorities, and public works departments. Work is typically organized into standing supply contracts with statewide or multi-year terms, structured by product category and served on an as-needed basis with specified annual volumes or open-ended availability requirements. All products must meet American Petroleum Institute (API) certification standards, and vendors typically must provide published price lists, material safety data sheets, proof of licensing, and insurance documentation. Contractors are subject to vendor management fees ranging from 1.5 percent of sales and quarterly reporting obligations.

Recent activity concentrates in Washington, Georgia, and Connecticut. The Washington State Department of Enterprise Services (Solicitation 09225-02, due July 30, 2026) is the largest current opportunity, seeking competitive bids for bulk lubricants, greases, gear oils, and DEF across four product categories under a 48-month statewide supply contract with historical annual sales of approximately $5.1 million and a 10 percent DBE participation goal; the contract awards to all responsive, responsible bidders scoring within 55 percent of the highest scorer, with a pre-bid conference scheduled for July 16, 2026. The Columbus Consolidated Government in Muscogee County, Georgia issued a Request for Bids (RFB 26-0030, due March 11, 2026, closed) for METRA Transit System lubricants and DEF across eight product lines with specified annual volumes and 24-hour delivery requirements under a three-year term with FTA and GDOT funding. The Town of Naugatuck, Connecticut released two duplicate motor vehicle and equipment parts RFPs (FY27-B085, due April 28, 2026, closed) that include heat-transfer fluids as part of broader vehicle maintenance procurement, though specifications remain incomplete in available documentation.