EFFICIENT LUBRICATION

Evening Star, Issue 22247, 27 January 1936, Page 13

EFFICIENT LUBRICATION

Although lubrication is a highly technical subject, the practical application of its truths should present no difficulties to the car owner who wishes to safeguard his vehicle against wear and tear. The purpose of lubricants is to provide a cushioning film, and it is obvious that the grade and nature of the lubricant employed must be dictated by the work that it has to do. Theoretically, oil and grease might be said to have an indefinitely long life, for, provided they do not become contaminated and .ire present in adequate quantities, they will continue to shield the frictional' parts to which they are applied. They do not undergo any obscure process of wearing out. T];e need for renewing lubricants is mostly due to contamination. The motorist would be well advised to follow the advice given by oil companies and the •manufacturers of his car about the type of lubricant to be used and its periodical renewal. Oil in a new and tight engine is exposed to much contamination, and also, is prone to deteriorate more rapidly than is the case with a ear which has been well run-in. Minute particles of metal are detached from the frictional parts during the time they are acquiring their working finish, and there is always some degree of crankcase dilution because of the penetration of condensed petrol, and impurities drawn in through the carburettor. It is therefore emphasised by oil companies and car manufacturers alike that the draining and refilling of the crankcase at the prescribed intervals are not an extravagance, but a valuable economy in the long run. The care of the engine is the most important duty, but the transmission, steering, and springing should not be forgotten, and the chassis should receive regular attention. A lubricant can only do its job faithfully when it is free from impurities and present in adequate quantities. Therefore, the motorist who takes a lively interest in his car cannot do better than follow the ' directions given in the manufacturer's instruction book.