The preservation of classic and collector cars is a matter many people take seriously. The adoption of ethanol and other alternative fuels has exposed some well-placed worry. (Photo taken by Chris Nagy) Gasoline is regarded as an essential ingredient energizing the classic or collector car world thanks to its popular appearance in over 130 years of vehicles. The 20-horsepower four-cylinder engine of the Ford Model T, the first small block V8s installed in 1955 Chevrolets, a 426 cubic-inch Hemi in a 1968 Dodge Charger and a 710-horsepower, twin-turbocharged V8 engine powering an ultra-exotic Ferrari F8 Tributo are all united by the use of a precious, flammable fluid. Generations of automobiles have been able to depend upon a reliable supply of gasoline providing assurance that older vehicles can become beloved classics. This doesn’t mean there haven't been challenges for vintage engines when the formulation of gasoline would be changed. Up until the last decade, the biggest concer...