U.S. Army Tank-Automotive RD&E Center is currently developing biobased hydraulic fluids (BHFs) to replace military industrial and mobility hydraulic fluids that are incompatible with environment. To verify the performances of these biobased fluids in military construction equipments, a joint field demonstration was initiated with US Department of Agricultural (USDA) using ten military construction equipment (i.e., Bulldozer, Scraper, Grader, Loader, Crane, etc.) at Fort Leonard Wood, MO. The field test was successfully completed and the test results showed that BHFs did not provide any abnormal behavior compared to the conventional petroleum based fluids. Based on the test results, this paper will discuss the on-going biobased fluid evaluation program, test results, and findings.
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