HOW’S YOUR OIL?

Sun (Auckland), Volume 1, Issue 34, 3 May 1927, Page 10

HOW’S YOUR OIL?

THE WHYS OF CHANGING In spite of the fact that manufacturers, garage and dealers constantly stress the importance of frequent oil changes in engine lubrication, many motorists fail to see why this changing is so vital. The introduction of improved lubricating systems, oil filters and devices to lessen oil dilution in the crankcase has done much to cut down lubrication troubles, but the subject of oil changing still demands the careful attention of the motorist. WHAT HAPPENS TO UNCHANGED OIL? In the first place, heat produces a chemical change in oil which causes it to lose its lubricating qualities. Gasoline may become mixed with the oil, lowering its efficiency. When there is no oil filter, particles of metal from the wearing surfaces and a certain amount of dirt and dust which accumulate in the crank ?ase oil may be forced to the engine operating parts. Unless all the oil is drained out of the crankcase foreign master will remain there. It is not sufficient to add only enough oil to keep the proper level. A new engine requires more frequent oil changes than an engine which is “broken in,” because new bearing surfaces thr.ow off a greater number of metal particles. Alter the first 500 miles of driving it is advisable to change the oil in the engine. Repeat this operation every 2,500 miles in warm weather, and every 1,000 miles in cold weather. WHAT KIND OF OIL TO USE Fortunately for the motorist, oil service is to-day so highly developed thai it is possible to get disinterested advice from filling station service men, oil dealers and garage men, as to the best type of oil to use for your engine. In addition to this manufacturers issue booklets of instructions with new cars, telling just what sort of oil to use for best results. Remember that at speeds of 40 miles an hour or greater oil consumption by the motor is considerably higher than at lower speeds. With ordinary driving the motor may consume one quart of oil for every 125 miles of travel, but this amount, becomes greater as speed increases. Keep the connections of the; accelerator control well oiled so that the gas ban be applied slowly and without jerking. Watch the spring tension rod adjustments if the action is not smooth.

Never allow the battery o! your car to stand in a low or discharged condition. Sulphatiori sets in and this will ruin the battery in a short time. It should be charged immediately.