Fuel industry voices have questioned whether a plan associated with President Donald Trump to use high-sulfur dyed diesel on US roads can be implemented under the current regulatory framework. The central obstacle is unchanged: the fuel has not been approved for on-road use.
As Jalopnik reports, a written revision to the Environmental Protection Agency's stance would be needed before high-sulfur dyed diesel could be legally used on public roads in the United States.
Until such a change is issued, the EPA's existing position remains in force. Political backing or public discussion alone does not alter the approved status of a fuel for road vehicles.
For drivers, the case underlines a practical point that also applies across other markets: fuel rules depend on formal regulation, and motorists should rely on current official requirements rather than proposed policy changes.