Lubrication Volume 4-5

Lubrication Volume 4-5

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ...general specifications: A motor oil should consist of refined and filtered mineral oils or mixtures, having a cold test of not over 25 F., fully suitable for use in internal combustion engines. An oil meeting these specifications would be perfectly satisfactory when used in an engine for which it was suitable, its suitability being largely determined by its viscosity and certain other features, among them being the ease of starting the engine in cold weather. There are a number of tests which are made for the purpose of determining the suitability of a lubricating oil, some of which have a bearing on the lubricating quality of an oil and some of which do not. Gram, ty---The gravity reading is merely an indication of the crude from which a lubricant is refined, and is no indication of its lubricating value for internal combustion cylinders. Flash and Fire--Flash and fire tests are no indication of the ability of an oil to stand up under the working temperatures of the cylinders. As stated above, the temperatures in the cylinders are far beyond the highest possible flash test of any lubricating oil, and a high flash oil would afford very little more resistance to destruction than a low flash test oil. Pour Test--The pour test is an indication of the temperature at which the oil will flow, and where the engine is operated under conditions of temperature below 30 F., the pour test of the oil is of considerable importance. The zero cold test of Texaco Motor Oils makes them particularly desirable for use in engines exposed to low temperatures, especially automobile engines. Vz, scosity--The viscosity reading is the measure of the body of the oil, and may also be considered as a measure of the thickness of the film of oil which would more

Product details

  • Paperback | 120 pages
  • 189 x 246 x 6mm | 227g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236588568
  • 9781236588562