Shutting off your hummer (permanently if possible) in the parking lot saves a lot of fuel compared to an emblem.
The point is that because of this flawed study millions of people who may have reconsidered their bad habits will have a good excuse not to shut off their engines for fear of the "Puff of bad emissions" when they restart.
I'm all for harm reduction and reducing waste. I'm not expecting the world to stop tomorrow but the amount of waste in our culture is staggering. Many of the people on this site have cut their consumption in half. We need more of this type of action on an individual basis. It could make a huge difference.
Idling accounts for up to 16% (and beyond) of and average car's fuel useage.
That ain't peanuts.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
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