(a) The test fuel to be used for the CST test options described in tables O-96-1 and O-96-2 of § 86.1430(b) must conform to the specifications listed in paragraph (b) of this section except that for manufacturer data submittal testing for the purposes of obtaining a certificate of conformity and for Selective Enforcement Audit testing, the octane specification of the fuels does not apply. For all gasoline-fueled Otto-cycle light-duty vehicles and gasoline-fueled Otto-cycle light-duty trucks (including those certified to operate using both gasoline fuel and another fuel), CST procedures performed for the purpose of obtaining a certificate of conformity must be conducted using the appropriate gasoline fuel only, as indicated in paragraph (b) of this section.
(b)CST test fuels by option.
(1) Test Option 1: Use Cold CO fuel as specified in the table in § 86.213-94.
(2) Test Option 2: Use Cold CO fuel, as specified in the table in § 86.213-94; optionally, the Administrator may substitute Otto-cycle test fuel, as described in § 86.113-94(a)(1).
(3) Test Option 3: Use Otto-cycle test fuel as specified in the table in § 86.113-94(a)(1).
Title 40 published on 2014-07-01
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