Are grease cars legal?
With so many states implementing pro-hybrid-car measures, like close-up parking spaces, fast lanes and tax deductions, you’d think the government would encourage people wholeheartedly to drive vehicles that use even less gas than hybrids do. That’s what most grease-car owners have assumed, in any case. After all, grease cars are the height of fuel recycling. These vehicles are diesel cars that have been converted to run almost entirely on new or used vegetable oil. Conversion kits basically add a second fuel tank and line to the engine. The original fuel tank and line carry diesel, which the engine uses on start-up, to warm the engine in preparation for the injection of the higher-viscosity vegetable oil (heat thins it
