So today Chevy said they are coming out with a cruise diesel. Mazda is supposed to bring the diesel "6" to the us as well.. in my current job I drive around 25-30,000 miles a year and work from my car. This means that during the summer I will be sitting with the car at idle with the AC on while doing paperwork, making phone calls and setting appointments. I was figureing I would get a Prius when my buick dies (hopefully in a few years, and no time soon) because you can run the Ac without the gas motor running.
My question is this at idle how much fuel does a diesel motor use at idle??? I once told that big rigs run a gallon an hour at idle, but I have no idea about a smaller car motor. I know letting my Buick idle kills my MPG quickly but it's a V6, and anything that replaces it will be a 4cyl... How do the new DI gas motors do at idle??
Just curious, thanks guys.