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GM provides technical details of the Gen 2 Voltec propulsion system used in the 2016 Volt

Green Car Congress

Clutches are OWC1, C1 and B1. 1) and external cooled exhaust gas recirculation (EGR). GM chose exhaust cam park timing to optimize cold-start emissions and engine efficiency based on the chosen intake cam park timing selection. Click to enlarge. —Jocsak et al. L Ecotec engine.

Volt 150