I believe we just need to keep improving the engines we use and keep working on all types of alternative fuels. What is wrong with propane systems in cars in stead?
no more dangerous than a gas system. works on same principle as gas. it is cheaper than gas by a full 2.00 bucks. gas mileage stays same but fuel is plentiful in the world. only 2 percent of it is used right now. and it burns cleaner than gas engines last longer need less repair on propane. achieve hybrid emmisions with out using hybrid vehicle. price on vehicles could stay same or might even drop. Many big fleets are using it and it is primary fuel source in smaller countries around globe. Only real pollution from prpopane when you turn on the a/c.
think about it? why not have the taxi fleet just be all Propane or natural gas. tried it once before try it again.
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