No.
No.
Not that it should come as a surprise to anyone that this article gets things wrong. PZEV is just about non-CO2 emissions, and does not noticeably affect fuel economy one way or the other.
No.
Not that it should come as a surprise to anyone that this article gets things wrong. PZEV is just about non-CO2 emissions, and does not noticeably affect fuel economy one way or the other.