A 20-truck fleet test of general purpose vehicles was conducted with four different engine oils, four gear lubricants, four greases, three brake fluids, an arctic antifreeze, two grades of gasoline, and two compression ignition fuels over a test course ranging from highway operation, hilly cross-country terrain, to operation in deep sand, in order to establish the compatibility of the various test materials with typical vehicles in the Army inventory. In general, the majority of the materials performed satisfactorily although specific compatibility problems were noted with engine oils in the 5-ton truck and gear oils in the 1/4-ton M-151 jeeps. Both federal and Military specification brake fluids gave satisfactory operational performance but tended to cause corrosion and gum buildup during inactive periods, whereas a military specification preservative fluid tested caused less corrosion and gum with satisfactory operation within its temperature limits. The military specification antifreeze utilized performed adequately in lower-heat-output engine systems but provided marginal to poor performance in the higher-heat-output engine systems. (Author)
Twenty Truck Fuel and Lubricant Fleet Test Program
1968
180 pages
Report
No indication
English
Military Intelligence , Jet & Gas Turbine Engines , Lubricants & Hydraulic Fluids , Cargo vehicles , Fuels , Lubricants , Performance(Engineering) , Compatibility , Road tests , Gasoline , Fuel oil , Internal combustion engines , Diesel engines , Differentials(Mechanical) , Engine structures , Greases , Oils , Freezing point depressants , Hydraulic fluids , Environmental tests , M-151 trucks(1/4-ton) , M-151A1 trucks(1/4-ton) , M-37 trucks(3/4-ton) , M-37B1 trucks(3/4-ton) , M-35 trucks(2-1/2-ton) , M-35A2 trucks(2-1/2-ton) , M-54A2 trucks(5-ton) , M-54 trucks(5-ton) , M-715 trucks(1-1/4-ton) , Off road tests
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