RADIO TRACERS APPLIED TO ENGINE WEAR STUDIES

THE MODERN INTERNAL COMBUSTION ENGINE has been developed to a high level of efficiency and when used in cither public transport vehicle or privately owned motor, will run for thousands of miles before repair or replacements of worn parts is necessary. The problems which have up to now occupied the attention of lubricant manufacturers have, so far as the engine itself is concerned, been in the main connected with improving the quality of the engine oil in respect of oxidation resistance and carbon dispersing properties. Hydrodynamically a simple overall drop in viscosity level has gone a long way to ease starting torque and battery life. As might be expected, more attention has been paid to the transmission where the major mechanical development of the last few decades was the hypoid gear which could never have been economically applied unless special lubricants had become available.