New emissions standards will reduce the amount of sulfur in gasoline to 10 ppm.
U.S. Gas Is Too Dirty For Our Best Engines, Mercedes-Benz Says
We rarely think about what's in our gasoline when we fill the tank, but carmakers have to. Mercedes-Benz has just launched a new direct-injected 3.5-liter V-6 engine in its 2012 SLK model, with an innovative "lean burn" mode that will also be used on a smaller four-cylinder engine. The "Stratified"...John Voelcker