Show GOOD POINTS ON SAVING GASOLINE s afsa ah arted OF of feet 0 0 5 00 goo 1 SH I 1 I 1 W Q a bale of feet 00 81 6 i I 1 prepared by the un ted S ates department of agrios ture here Is a suggestion to motorists f r the saving of gasoline which may I 1 I 1 e small in amount for a single day days s drive but wl ich w 11 II be NN worth orth while in a 5 air s driving tl TI e common tice of ni waiting alting to shift gears on I 1 lilla ich I 1 tle car ras has almost come to a stop Is one of the causes caves of waste of mall amounts of g gasoline isolene according Acco iding to the bureta of public roads this fact lh lb shown by tests conducted by prof T r agg of iowa state college in co aeration pe ration with the bureau under the au aasi slices ices of the national research council means saving of gas the tests were made primarily to d scover the effect of various linds kinds of highway surfacing material and dif ferent grades on gasoline con ump tion tl TI e conclusion with reference to faulty driving Is merely incidental to the tests but it Is one which will mean a small saving to every min aho vho ho drives a car if the advice of the bureau Is heeded the vehicles used in the tests were i I 1 ped with an ingenious device which makes a continuous record of tt it e gasoline consumed as the vehicle moves over oner the road and another which makes a simultaneous record if the speed at every instant suit able sections of road were selected for e tests and the exact grades of these potions were determined the special v eq lipped vehicles both trucks and cleasure ule ble asure cars were driven over the various sections taking the rec ree of the gasoline consumption and speed with the two instruments deser bed several trips were viere made oi over er each section and the rate of fuel consumption and speed for eich cich rip trip were plotted on a graph w ih ill the profile or grade of the road it Is these d abrams that show th tatt effect of delayed hefti ig of the clars on hills exact instructions for th most economic arl driving ing will vary vi th the make of the car or truck lut the fol following loRing po aters will be of alue to all motorists in ascending a hill dont don t wait until the last second to shift to a lower gear if 5 vou ou do you will not only lose speed and overtax your enaire but you will also consume more g solane chart shows results the accompanying ci dart art saca s the results result of two trips of a one tot to t truck on one trip the gears were shifted at a speed of 30 10 miles an hour and 01 on the other at a speed of five live miles an houi the rate of gasoline tion don Is indicated by the siz cizl of the cans wl ich fell rep represent reent the a no mt int of fuel used in each section of SOO feet and the speedometers show ahe vana varia tion in speed together they tny show very ery clearly the economy of the early shift with more knowledge economic driving a consider ble re i can be made in the 4 WO 0 gallons of gasoline consumed e baci I 1 rear year i |