The Department of Defense, specifically the Navy, is seeking innovative solutions to enable the compatibility of Tier 4 diesel engines with JP-8 fuel, which is essential for expeditionary operations. The objective is to develop a solution that allows current Tier 4 engines to operate effectively with JP-8 without adverse effects on performance or lifecycle costs, while also accommodating ultra-low sulfur diesel (ULSD) for domestic use. This initiative is critical as Navy expeditionary forces currently rely on outdated Tier 3 engines due to the incompatibility of modern Tier 4 engines with JP-8, leading to increased procurement costs and operational challenges. Interested parties should note that the solicitation is open from September 18, 2024, to October 23, 2024, with proposals due by the latter date. For more information, visit the official source link at https://www.dodsbirsttr.mil/topics-app/.