Wow, Yesterday I purchased a 1976 300D Mercedes-Benz, what a nice car! The car has a high idle control mounted on the dash from the factory! lol Ours do not even come that way factory now a days and we have to get them enabeled. These cars rule and boy does that low compression sure sound sweet, boy o boy the days of the old style diesels, too bad I am too young to ever see them when they were new, but for a 3600lb car dry they get 20-35 mpg speed based! Now imagine if our trucks were built to the same quality as these cars!