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Show I ANOTHER WAY OF SAVING GAS Tests Show That Hill Climbing Climb-ing Method Causes Wastage Her is a. suggestion to motorists for tho saving of grasoiino which may b small in amount Cor a sinplc day's drlvft but which 1 bo worth while in a year's driving. The common practice of waiting to jhift gears on hills until tho car has almost ome to a stop is one of tho causes o waste oi 0ras.ll amounts of ffasoiinx. According 10 the Bureau ot Puhllc Koads this fact is shown bv tests conducted by Prof T. R. Agp of Towa State college in co-operation with tho buresu under tho auspices of th National Research council. The tests were made primarily to discover the effort or various kinds of highway grades on gasoline eon-sumption. eon-sumption. Tho conclusion with reference ref-erence to fau't driving is merely Incidental In-cidental to the tests, but it is one which will mean a small saving to every man who drives a car if the ad-yjpe ad-yjpe of the bureau is heeds! The vehicles used in the tests wer-J equipped with an Ingenious device which makes a continuous record ot Ix lie gasoiino consumca ;ia mu uvuivic moves o.er the road an 1 another which make? a simultaneous recor.l ' the speed at every instant. Suitable sections of road were selected for thy testa and the exact grades oi these sections were determined. The especially espe-cially equipped vehicles, both trucks and automobiles, v. ore then driven oer the various sections taking the records of the gasoline consumption and spoed with the two instruments described. Several trips were made over each section, and the rate Of fu 1 consumption and speed for eacb trip were plotted on a graph with the profile ov grade of the road. It is (hese diagrams that show the effect, of delavcd shifting of the gears on bills. Exact instructions for the most economic driving will vary wltb th3 make of the car or truck, hut, the following fol-lowing pointer will be of value to all motorists: In ascending a hill don't wait until tho last second to shift to a lower jroar. If you do you will not only lose speed and O' ertax your engine, bul you will also consume more gasoline. |