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Originally Posted by Astronouth7303
Yes. there's a guy who made his car run on grease. so when he needs a fill-up, he goes to his local McDonalds.
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He definitely doesn't have to worry about refueling. Sometimes it's easier to find a McDonalds than a gas station!
There's also a more refined low sulfur diesel fuel coming out in the U.S. in another year or so. There won't be as much black soot with this as with the other diesel. Some car manufactures are also tweaking diesel engines to make them quieter more like gas engines. Diesel gets more miles to the gallon than gas unfortunately not every gas station offers diesel.
There are propane and hydrogen vehicles on the road. Most of these vehicles are fleet vehicles and there's currently almost no fueling facility for these vehicles other than thier "home base" or at the companys that own them. A lot of the UPS trucks near me are propane but they're only refilled at the UPS lot because gas stations aren't equipped to handle these types of vehicles. The gas stations can only handle refilling 20# barbecue tanks. The propane motors in these trucks are Chevy Vortec 6 cylinders converted for propane, and also is the same motor used in some forklifts.
There's also fuel cells but this technology is currently too new to be applied to vehicles in mass production and is mostly limited to electrical power generation. Next to where I work is a fuel cell plant and they laid off half thier workforce because of the lack of contracts. I personally don't see fuel cells taking off anytime soon.