Fuel consumption tests of two same type light duty trucks are carried out with the original full throttle ac-celerating fuel consumption test method recommended in GB12545—90,but the test results of the two light duty truck are not consistent with the actual condition.By analyzing reasons of the problem,proposal for improving the full throttle acceler-ating fu el con sump tion test method of GB12545—90are brought forward,and supplements for GB12545.2—2001are also pre sented.Tests of the two truck...