According to Mercedes-Benz, America’s dirty fuels, namely its high sulfur content in gasoline, is the main reason why we won’t be seeing a new generation of ‘lean-burn’ engine technology anytime soon. Already on sale in Europe, these lean-burn engines run at a much leaner fuel-to-air ratio than conventional engines, improving fuel economy and emissions. Mercedes-Benz calls its lean-burn engines “Stratified” and says the technology can improve efficiency by as much as 10 percent. However, the technology requires gasoline with a sulfur content of less than 50...
Mercedes-Benz Continues DiesOtto Work, S-Class Still Slated To Be First
The idea of combining the best of the high-compression, high thermal efficiency characteristics with the power and familiarity of gasoline isn't new. There are a number of concepts out there, including sparkless HCCI engines, Lotus' variable compression, multi-fuel Omnivore, and of course...Nelson Ireson