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_2- <br />A. ALIViln cs (conL. ) <br />A. rFewer Oil Changes and Imr.oved L'ngi.nc vicar. Because propane 1 <br />borne— d z— n a gaseous state as compared to the liquid form <br />of gasoline, engine oil does not become contaminated with <br />sludge and varnish deposits, thus, doubling or tripling <br />the useful life of an oil change. Also, because of the <br />elimination of combustion deposits and improved lubricating <br />ability for engine oil the normal wear to an engine is <br />reduced. <br />5. Reduced Exhaust Emissions. Propane burning vehicles emit <br />15 gnific antl.y reduced amounts of pollutants which, if the <br />vehicle is not on a dual system, allows for the removal of <br />the pollution control devices on the engine. <br />6. Elimination of Pilferage. Because propane is used in a <br />sealed --full pilferage, spillage, and evaporation <br />arevirtually eliminated. <br />7. Propane is Safer than Gasoline. Propane can be considered <br />safer than gasoline for four reasons: <br />a. Propane tanks are over 20 times stronger than gasoline <br />tanks in resistance to a collision. <br />b. Should the fuel line rupture, propane systems have (� <br />built-in safety devices and shut-off valves to prevent <br />leakage. <br />c. In tests conducted by the South San Francisco Police <br />Department using both rifles and handguns it was <br />determined that, "...propane tanks could effectively <br />resist the impact of an handgun bullet..." and when <br />pierced, "...would produce a high-pressure leak and, <br />if ignited, would produce a torch -type flame much <br />easier to control...". They also observed that, <br />"...if. the vehicle were set afire by a Molotov <br />cocktail, the relief valve would function, preventing <br />an cxplosiun." <br />d. Propane is less flammable than gasoline. <br />B. Disadvantages <br />1. I,oss of Power. Propane has fewer BTUs than gasoline which <br />resu is in an overall loss of power (on the highway) of <br />about 10%. <br />