A GRUELLING TEST.

Hauraki Plains Gazette, Volume VL, Issue 3131, 7 February 1934, Page 7

A GRUELLING TEST.

EFFICIENT MODERN OILS. The world’s most gruelling touring test has just been completed. It took place in Death Valley, the hottest and lowest spot in America. The object of the test was to try out the efficiency of Mobiloil as a lubricant. A Plymouth sedan was selected for the test. It was stripped of its radiator, and without a drop of water in its cooling system, it- was driven for ten hours on the sun-scorched floor of Death Valley. At the end of the day it was found that the engine had not been injured in any way by the unusually severe conditions under which it had been worked. Ten hours in the scorching heat with the thermometer at 130 degrees Farenheit, was too much for one driver. Drivers were, therefore, changed, periodically. This was done without stopping the car or engine, so that there was no abatement in the punishment to which the car and lubricant were subjected. Temperatures were enormously high. The carburettor temperature was 170 degrees, the crankcase oil 200 degrees, the cylinder wall 405 degrees, the cylinder head 490 degrees. These are all much higher than any car would normally encounter in actual service.

Gargoyle Mobiloil functioned perfectly throughout. There was no loss of power, no hearing failure, and no scored cylinders. Following the endurance test the car with full equipment, was made to do a 1,000 mile drive in second gear at 30 m.p.h. Then it was driven on a wild jaunt from Death Valley as far as motor cars can go up the side of Mount Whitney, the highest mountain in the United States. At the end of its journey it was examined and found to be in perfect running order.