GM emphasizes its safety testing for the Bi-fuel Impala
Green Car Congress
NOVEMBER 13, 2014
GM says that it has tested the compressed natural gas (CNG) tank in the 2015 Bi-fuel Chevrolet Impala ( earlier post ) under normal and extreme conditions, exceeding both federal requirements and CNG industry guidelines. Some aftermarket CNG-conversion kit manufacturers conduct only a barrier test. Click to enlarge.
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