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Show Reducing the Cost of Upkeep of Automobile Use of the proper grade oil and attention at-tention to the oil filter every 10,000 miles, engineers agree, will reduce cost of mechanical upkeep of the car, saving sav-ing the motorist perhaps as high as $150 in car wear during the life of his automobile. The thin oil film between the moving mov-ing parts is what protects the automobile auto-mobile engine against wear. This film is six times thinner than the page of this paper. But it must be kept clean and free from carbon residue and other foreign matter. This can be done by proper attention atten-tion to the oil filter the device through wliich the oil passes and Is filtered. When the oil is filtered properly prop-erly it has less tendency to form carbon car-bon residue or develop gummy matter which will absorb dust and dirt. The oil filter will function at highest efficiency effi-ciency up to 10,000 miles driving. After Aft-er this mileage it becomes filled with carbon and other foreign matter and should be serviced immediately. Inability of an oil to properly lubricate lubri-cate is nearly always the result of its contamination rather than faulty refinement, assuming, of course, that the correct grades to meet engine operating op-erating conditions have been selected. The oil filter cleans the engine oil constantly at the rate of one quart a minute while the engine is running and the entire contents of the crankcase every five to ten minutes. In 10.000 miles of driving It removes sometimes as much as two pints of dirt, foreign matter and sludge from the oil, thus preventing this destructive material from injuring the engine's vital parts. The use of an oil filter gives clean lubrication and reduces engine wear. But if the cartridge is not renewed every ev-ery 10.000 miles, its whole purpose Is defeated and wear of the engine parts will result from dirty oil. After 10,000 miles of driving It is Important that the filter cartridge be renewed. This is Important because this mileage the filter unit becomes filled with dirt, sludge and other foreign for-eign matter taken from the oil.i |