Show simple test lindi vindicating indicating cating suitability of gasoline comprehensive tests testa of garoll gasoline a quality cannot be made without laboratory equipment find and then only by experienced men there 13 a a simple test however that can be token taken as directly indicating the suitability of any gasoline for use in nil an internal combus combustion flon engine this test can be made in a few by any motorist without expense it Is ie conducted as follows into a small porcelain crucible pour about 30 c c of the fuel to be tested light it and allow tt it to burn freely till the fuel Is entirely consumed it II only a small amount of carbon Is left on the side walls of the crucible and the bottom remains practically clean tile the quality of tile the fuel Is good if the deposit of carbon on the side walls walla of the crucible Is and black and if there Is a thick black residue nt the bottom the gasoline Is poor there are arc of course any number of degrees of variation varl aaion between these two extremes primary consideration for judging the quality of gasoline and its suitability for motor vehicle fuel are the relative ease case of starting in cool weather nil mileage leage per gallon in ordinary use heaviness or slightness of carbon de in combustion chamber chamb pr and degree of adulteration ot of the lubricating oil all in tile the crankcase crank cuse |