RUNNING IT IN

Rotorua Morning Post, Volume 1, Issue 128, 22 January 1932, Page 2

RUNNING IT IN

CARE OF NEW CAR. Most manufacturers and agents specifically wavn the owner uot to run a nwe car i'as'ter than 20 to 25 miles per hour in top gear for the first 500 miles. It is possible to spoil a good car and materially shorten its useful life if the warning is ignored. Another point that must be strictly adhered to is that only the highest grade oil of scientifically correct body should be used from the day the car is put on the road. The manufacturer turns out the car as perfeet as is humanly possible. but if the moving parts, such as pistons, cylinder walls, etc., were examined under a microscope, small irregularities on their surfaces would be seen. Only by the gentle rubbing of pne part over another in the presence of a high-grade lubricant can the roughness be removed, and a glasslike finish be imparted to the moving surfaces. It is at this period of a new car's life that the engine oil must be drained at more frequent intervals than later, when the car has been thoroughly run ixi. Small particles of metal are removed by the running-in process and eirculate with the oil. This abrasive material must be removed as it is produced, so it is wise economy to drain the crankcase after the first 250 miles. Subsequent drainings should be carried out at periods of 1000 miles in summer and 500 miles in winter. It is weil to drain while the engine is still warm, for then most of the sediment, in suspension in the used oil, will be carried away. Knowledge of the mechanical details wiil help every car owner considerably in achieving efficiency in driving, and will prolong the life of his car by enabling him to avoid placing ui-due strain or wear on the car's mecliaiiism. Time spent in a elose study O'f the controls will amply repay the motoristu