For BMW and Audi drivers, the start of 2017 brings both good news and bad. A new federal rule cuts the amount of sulfur in gasoline by two-thirds, part of a seven-year push to remove a pollutant that dirties the air and damages public health. But it also means drivers of high performance cars will pay more for premium, since added blending components are needed to boost octane after the sulfur is removed, according to Tamra Johnson, a spokeswoman for AAA, the nation’s largest motoring organization. While most other car owners won’t be affected by the sulfur curb, it doesn’t mean they’re unscathed as 2017 begins: At least seven states have boosted their gasoline taxes, potentially driving the national average cost for gasoline above $2.40 per gallon, according to Johnson. The changes are “a hard pill to swallow for drivers who already saw pump prices jump 15 cents since […]