Respected mods please merge this thread if there is any existing thread on forum. I searched the forum using Google Custom Search and I didnt get one. With the launch of Diesel Honda City people are going crazy for Diesel City. City uses Amaze's diesel engine. I am not that expert and wanted to discuss about which is the best diesel engine in the Indian Automobile industry. Honda's iDTEC engine is all aluminium and Multijet is Cast iron if I am not wrong. So my question which engine is better all Aluminium or the cast iron engine? Is the iDTEC Engine is better than Multijet except NVH? :confused.