Internal Combustion Engines

French material-supplier Saint-Gobain SA introduces its new SG4 high-porosity diesel particulate filter substrate, which it says can lower initial backpressure and handle increased soot-loading. John Eubanks, North American account manager, says the SG4 DPF's silicon carbide structure and asymmetric cell design allows the filter to handle temperatures up to 2,912 F (1,600 C) and operate in nearly

byByron Pope