EPA Is Toughening Tailpipe Emissions and Gasoline Rules
This “Tier 3” pack rules is supported by the auto industry because it will bring US standards to meet those of California, where the limits are already lower. Also, the automakers said that they need low-sulfur gasoline to start selling cars with lean-burn gasoline direct-injection engines.
"We think this is a very significant proposal and are delighted that the car makers support it," Frank O'Donnell, president of the advocacy group Clean Air Watch, said in an email.
The automakers are taking this as a key strategy to comply with stricter corporate average fuel economy standards that will be about 54.5 mpg in 2025.
In contradiction, the rules are conflicting with the oil companies, as they need tens of millions of dollars to upgrade the refineries to produce low-sulfur gasoline and as a matter of fact, they will have to raise fuel prices.