The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking proposals for the procurement of lubricating oil under the solicitation titled "91--LUBRICATING OIL, UTI." This opportunity is specifically set aside for small businesses, as indicated by the Total Small Business Set-Aside designation (FAR 19.5), and falls under the NAICS code 324191, which pertains to Petroleum Lubricating Oil and Grease Manufacturing. The lubricating oil is crucial for various military applications, ensuring the optimal performance and maintenance of equipment. Interested vendors should direct any inquiries regarding the solicitation to the buyer listed in the solicitation document, accessible via the DLA's DIBBS website, and can reach out via email at DibbsBSM@dla.mil for further assistance.