OILDAG.

Taranaki Daily News, 24 February 1916, Page 7

OILDAG.

At last something like the perfect motor lubricant would appear to have struck the market. The product is known as "Oildag." It is the invention of Dr. E. G. Adieson, and that scientific genius stands on the threshold of a fortune if he manages the thing correctly. The new lubricant is composed of one cubic inch of solid defloculated graphite niiT-'cd with three gallons of ordinary cylinder oil. Tests have been made with three cars which covered an aggregate distance of 42,000 miles, and not one valve had to he ground. The reason is simplicity itself. A small proportion of the graphite is carried out into the exhaust, and a smaller proportion becomes embedded in the surface irregularities of the valves, and has the effect of preventing fitting and maintaining compression. That is to say, the graphite fills up the microscopic irregularities of the steel surface till an absolutely perfect fit is obtained between cylinder and piston, so that practically all oil is wiped down by the piston off the walls of the cylinder at eacli stroke. Worked out in detail, it proves that three times the distance can be covered with "Oildag'' and oil than with ordinary oil unreinforced with the graphite. It is worth while remembering that ordinary graphite is useless for this purpose, as it is too coarse. The delloculated graphite used in the new preparation is 1(100 times finer than the ordinary graphite, so it is obvious that the ordinary mind, unaccustomed to the chemical fineness of things, finds it hard to realise how minute are the particles of graphite used in the new lubricant. But it is effective. It also lessens carbonisation owing to the lessening of oil consumption. "Oildag" is being marketed in tins, the contents of which are intended to he mixed with one, five, ten or forty gallons of iWAVW lubricating oil.