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In trying to keep up with emissions and fuel efficiency laws, the fuel system used in modern cars has changed a lot over the years. The 1990 Subaru Justy was the last car sold in the United States to have a carburetor; the following model year, the Justy had fuel injection. But fuel injection has been around since the 1950s, and electronic fuel injection was used widely on European cars starting around 1980. Now, all cars sold in the United States have fuel injection systems.
Originally posted by Valhall
I think you should provide links to these claims, so that we can review the technical data behind them.
Right now all it sound like is that you are describing a compression ignition versus a spark ignition process. And, no, (since you asked for my take) I don't believe the claim of 200 mpg.
Provide a link, or a reference to a hardcopy book, please.
Originally posted by HowardRoark
Please see my link to Snopes.
That is one of the oldest "modern" urban legends around.
Did you also hear the one about the tablet that you drop into a gallon of water? it turns into instant gasoline.