Assertion: low sulfur diesel | /r/HasProperty | 500 ppm
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text: The allowable sulfur content for ultra-low sulfur kerosene and ultra-low sulfur diesel (15 ppm) is much lower than the previous US on-highway standard for low sulfur diesel (500 ppm), which not only reduces emissions of sulfur compounds (a cause of acid rain) but also allows advanced emission control systems to be fitted that would otherwise be poisoned by these compounds.