OCR Text |
Show Simple Test Indicating Suitability of Gasoline Comprehensive tests of gasoU"1 quality cannot be made without laboratory lab-oratory equipment, and then only by experienced men. There Is a simple test, however, that can be taken as directly Indicating the suitability of any gasoline for use In an Internal combustion engine. This test can be made in a few minutes by any motorist without expense. It le conducted as follows : Into a small porcelain crucible pour about 30 c. c. of the fuel to be tested. Light It and allow It to burn freely till the fuel Is entirely consumed. It only a small amount of carbou is left on tue side walls of the crucible; and the bottom remains practically clean, the uuallty of the fuel Is good. If the deposit of carbon on the side walls of the crucible is heavy and black, and if there is a thick black residue at the bottom, the gasoline Is poor. There, are, of course, any number of degrees of variation between these two extremes. ex-tremes. Primary consideration for Judging the quality of gasoline and its suitability suita-bility for motor vehicle fuel are the relative ease of starting In cool weather, weath-er, mileage per gallon In ordinary use, heaviness or sllghtness of carbon deposits de-posits In the combustion chamber, and degree of adulteration of the lubricating lubri-cating oil In the.crunkcase. |