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)


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    The Effect of Gear Lubricant on Fuel Economy as Measured in a Line Haul Truck Fleet

    Adams, J. H. / Frost, K. A. / Painter, L. J. et al. | SAE Technical Papers | 1981


    The Effect of Gear Lubricant on Fuel Economy as Measured in a Line Haul Truck Fleet

    Adams,J.H. / Frost,K.A. / Hartmann,L.M. et al. | Automotive engineering | 1981



    Non-truck vehicle-truck vehicle fleet

    NESSLER JENS / KLEINHAGEN-BROCK MARKUS / KASTNER ROBERT | European Patent Office | 2022

    Free access