We didn't get ultra low sulfur diesel here until a few years ago: http://www.greencarcongress.com/2006/06/ultra_lowsulfur.html http://www.greencarcongress.com/2

We didn't get ultra low sulfur diesel here until a few years ago: http://www.greencarcongress.com/2006/06/ultra_lowsulfur.html http://www.greencarcongress.com/2006/06/ultra_lowsulfur.html