He’s not a tax cheat, he’s opting out of paying for a voluntary tax. People who use propane-powered cars don’t have to pay the gas tax. Neither do people who use propane or electric cars because the gas tax is a tax on gasoline itself, not on the roads. This will not hold up in court.
Depends on the state. In Pennsylania, it’s a road usage tax, and you have to send the Department of Revenue quarterly tax returns and payments on gallons of biofuels USED (but not necessarily produced), at .21 per gallon.
i think it depends on the state, i know they hit you BIG-TIME for it in the UK. here in ny it's a moot point as there's no dedicated road tax that i know of, all the gas taxes go into the general fund and what slips through albany and ny's fingers goes to the roads and upstate.
now on trucks, some states make them pay just to Cross their state because they don't get any fuel-sales taxes from them so you see little state tax stickers on the back.