I'm skeptical and unsure about this (I read this in the Washington Post this morning).

I generally don't like raising taxes period. And even if it would raise more money for roads (a good thing), I bet only 50% of it ends up actually being used towards improvements. The other 50% will disappear somewhere in the shadow of government inefficiency and dishonesty (a bad thing).

On the other hand, raising petrol prices would remind folks to perhaps stop using so much petrol in the first place. I saw fewer cars on the road when prices reached to sky-high levels, and folks actually reconsidered alternative means. I would like to see less tax on diesel though. Americans have such short term memories.

So I'm ambivalent on this issue, it has its pros and cons. I would suggest keeping the petrol tax as it is, and raising state registration fees to $200 a year.

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2014 Mazda 3 GT: Ø Consumption: (click for details)