General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 9933-1988
Scope
This standard stipulates the evaluation of detergency and anti-wear performance of internal combustion engine oil by Caterpillar 1G2 method. This standard is applicable to the performance evaluation of diesel engine oil (CD grade), as well as the performance evaluation of general-purpose oil for gasoline and diesel engines, oil for internal combustion locomotives, etc.
GB/T 9933-1988 history
1988GB/T 9933-1988 The test method for evaluating the performance of internal combustion engine oil (Caterpillar 1G2 method)