...the instruments for breaking the stranglehold of OPEC, restoring the price of gasoline to less than $3 per gallon and keeping it there, and reducing greenhouse gas emissions in the process are well known. Adopting or enacting the following four measures is all it takes: mandating that all cars sold in the United States be flex-fuel (i.e. capable of burning gasoline, methanol, or ethanol (or bio-diesel for diesel engines)); accelerating the introduction of these alternative fuels into the market; accelerating the introduction of plug-in hybrid-electric cars and trucks; and making these vehicles using carbon composite materials as Boeing is doing in the new 787 Dreamliner (reaping a 20 percent gain in fuel efficiency in the process).
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(The success of the biodiesel fuel industry relies heavily on biodiesel testing, not only at the production level but at the consumer level, where degraded fuel may cause engine failures.  Fleet Biodiesel's family of inexpensive biodiesel test kits is just a click away on the internet)