Arizona republican., 1917-08-26
REAL ECONOMY
 IN MOTORING

ms IS war time and war time means economy time. American motor car owners have been to an extent spoiled Tn past times by the comparative cheapness of commodities entering lnto the manufacture and operation of tnelr vehicles. When products are cheap the temptation to waste is al most irresistible and We are essential " nation of Wasters anyway. To- day, however, prices of most motoring necessities are rising and there is real need for practicing economy. The large majority Of our motor car owners are ignorant or the ways and means of ac- coInplSh1ng any appreciable saving in the operation of their cars The prin- clpal points in which worth while say lngs may be affected are in fuel and oll consumption. tire wear and general wear and tear.
 The first item to consider is fuel and the car owner should not scorn the small savings in this connection, for Tn their aggregate they make formid- able total. To begin with every owner should reduce the idling periods of his engine to the smallest possible mini mum, he should stop eVay smalleet gasoline leak and should have the car buretor adjusted so that it consumes the smallest quantity of fuel consistent "Ati4 C4I4NltIl IuIlllls. AlltHIlOn to these three details of operation and adjustment, l will save many gallons Of gasoline per annum for each motor lst who needs the warning
 Next it is essential to reduce to it's inevitable minimum the friction in the mechanism and this must be accom- pllshed by proper fabrication. Free dom from carbon in the cylinders pro- notes fuel economy. Efficient func- uonlng of the ignition system is a Vitally important factor in any attempt to obtain economy of fuel consumption. To obtain maximum ignition efficiency the owner must pay strict attention to the battery, wiring. spark plugs and other units of the ignition system If the spark is not correctly timed or lacks life. heat, the fuel vapor in the combustion chamber will be but partly fired or will explode al a time when some of its force will be wasted. Further, there must be no leaks in the engine itself, as distinct from the fuel system. Valve leakage is one of the commonest causes of lost power, which in the final analysis means excessive gasoline consumption. since it will re- qulre additional fuel expenditure to make up for the waste The valves must be kept accurately seating all the time, because a very small leak here will cause a very large waste of fuel.
 In the interior of the engine a great deal of unnOticed waste will result from piston rings that are too loose When this condition develops a quantity of the fuel forces its way down past the rings into the reservoir and is, of course, wasted. The owner who has reason to suspect this condition should try fitting some of the leak proof pis- ton rings of patent construction de- signed to correct just this fault. This same condition is sometimes .produced by the use of a lubricating oil of too light a body. The oil is thinned by the heat present under running conditions and lacks the ViScosity to make a per fectly gas-tight seal at the piston. As a result the fuel forces its way past the rings and into the reservoir
 Then there is the possibility of util izing heavier and cheaper grades of fuel. Most modern cars will run on the cheapest grade of gasoline and even on a mixture Of gasoline and ker- osene, in the proportion of one gallon of the latter to three of the former. Obviously certain adjustments in the carburetOr will have to be made. per haps by the service station, but the saving in cost between gasoline at twenty-five to thirty-five cents and kerosene at thirteen cents per gallon, justifies the trouble. If the owner de- sires to try out one of the kerosene carburetOrs or other devices for using this heavier fuel we would suggest his Rettfuc one that is sold on approval or