The potential and limitations of late IVC on diesel PCCI engine were experimentally investigated by Nevin et al.6 under various EGR levels, boost intake pressures, fueling rates, injection pressures and injecting timings. A 90% decrease of NOx emissions was obtained with the help of late IVC at high speeds and intermediate loads under the conditions with constant air/fuel ratios and no EGR in the experiment. Late IVC, coupled with low injection pressure and early injection timing, provides a good solution for low fuel consumption. As late IVC, 55 BTDC injection timing and a 40% EGR rate were used, the NOx and PM emissions can reach the requirements in the 2010 emission standards of the United States (US). Thus, Nevin et al. concluded that late IVC is a successful strategy in controlling combustion phasing and engine emissions.