Source: U.S. Environmental Protection Agency
quote: Charles T. Drevna, president of the American Fuel and Petrochemical Manufacturers, which lobbies for the oil refining industry, said that the rule comes on top of a series of other burdensome regulations. A decade ago, American gasoline contained 300 parts per million of sulfur, but earlier rules required refiners to cut the sulfur content by 90 percent, down to the current 30 parts per million. Mr. Drevna said it was easier to comply with the earlier regulations because removing the first 90 percent of sulfur molecules from gasoline can be done without difficulty. Wringing the last 10 percent of those molecules is harder. “They’re tough little buggers that don’t want to come out,” Mr. Drevna said. “It’s like getting the last little bit of red wine stain out of a white blouse.” Asked about the E.P.A.’s estimate that the rule would raise prices at the pump by less than a penny a gallon, Mr. Drevna laughed out loud. “I don’t know what model E.P.A. uses,” he said. “The math doesn’t add up.” His industry’s estimate that the rule could raise gasoline prices by up to 9 cents a gallon comes from a study by the American Petroleum Institute, which lobbies for oil companies.
quote: they do have an average expected life of 100k to 150k miles
quote: You have to replace it eventually just like anything else.
quote: Besides your exhaust note is a lot raspier without cats on the car.
quote: Can you imagine trying to find and remove 20 of 30 grains of light colored sand from 999,970 grains of dark colored sand?
quote: How exactly will cutting sulfur reduce soot and smog. By stopping catalytic converter clogging? Please. You're supposed to replace the converter every so often anyway. Going from 30 parts per million to 10 is hardly a noticeable reduction.
quote: We're talking a 0.002% reduction in sulfur
quote: You can't dismiss a 66% reduction just because it's a tiny number.
quote: Do you know how bad your water would taste if it had 30 ppm hydrogen sulfide?
quote: So what? You can't dismiss a 66% reduction just because it's a tiny number.
quote: Do you know how bad your water would taste if it had 30 ppm hydrogen sulfide? It smells like rotten egg and corrodes your pipes at only 2 ppm:
quote: What's your basis for saying they're ridiculously high? The famed TDI engines from VW get very average emissions (Tier 2 Bin 5) compared to gas engines. Yes, particulate emission standards were a hurdle for diesel cars coming to the US. But high sulfur content of US fuel was also a problem for Euro emission systems.
quote: As an example, most diesel sold in western countries is ULSD (ultra low sulphur), where it's defined as 15 ppm. Now that the US has sulfur similar standards, diesel engines don't have to be redesigned to enter the US (hence more models becoming available). Unless you've done extensive research in the field, you have no basis for saying a 10 ppm standard is unduly burdensome.
quote: Sulfur differs from carbon in much more meaningfully ways than color. I have to question if you even passed highschool when you're making such a ludicrous analogy. Chemical methods can eliminate impurities to less than 1 ppm in many different materials.