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Article:
Ten Myths About Synthetic Lubrication by: Ed Newman It's a fact of life that behavior is influenced by what people believe, whether true or not. Numerous cases from history bear this out. For example, sailors were once fearful of sailing outside the sight of land lest they would fall off the edge of the world. In the early 19th century, the train was considered dangerous because it was believed that if you moved faster than 25 miles per hour, you'd be traveling too fast to breathe. At a later date, the New York Times warned that electric light would cause blindness. Microwave ovens, automobiles and airplanes have had equally vociferous opponents. Looking back, it's easy to laugh at some of the things people once held as true. But these people were not stupid. They were misinformed. In many instances they had simply drawn conclusions before all the facts were in. How easy it is to make the same mistake today. In our own time, synthetic motor oils have been the object of numerous misconceptions held by the general public. Many people, including some mechanics, have been misled by these persistent myths. PARAMETERS OF THE DEBATE Synthetic motor oils are fuel efficient, extended life lubricants manufactured from select base stocks and special purpose additives. Synthetic oil base stocks are made from organic compounds or synthetic hydrocarbons using a process that re-arranges the structure so all the molecules are uniform in size, shape and weight, a phenomenon that does not occur in nature. In contrast to petroleum oils which are pumped from the earth and refined, synthetics are custom-designed to produce, in effect, the ideal lubricant. In responding to the objections most commonly raised against synthetics it is important to establish the parameters of the debate. When speaking of synthetic motor oils, this article is defending the lubricants which have been formulated to meet the performance standards set by the American Petroleum Institute (API). (The first such synthetic motor oil independently tested and confirmed to meet these industry-accepted tests for defining engine oil properties and performance characteristics was AMSOIL 100% Synthetic 10W-40 in 1972.) Many people with questions about synthetics haven't known where to turn to get correct information. Is it super oil or snake oil? Some enthusiasts will swear that synthetics are capable of raising your car from the dead. On the other hand, the next fellow asserts that synthetics will send your beloved car to an early grave. Where's the truth in all this? In an effort to set the record straight, we've assembled here ten of the more persistent myths about synthetic motor oils to see how they stack up against the facts. Myth #1: Synthetic motor oils damage seals. Untrue. It would be foolhardy for lubricant manufacturers to build a product that is incompatible with seals. The composition of seals presents problems that both petroleum oils and synthetics must overcome. Made from elastomers, seals are inherently difficult to standardize. Ultimately it is the additive mix in oil that counts. Additives to control seal swell, shrinkage and hardening are required, whether it be a synthetic or petroleum product that is being produced. Myth #2: Synthetics are too thin to stay in the engine. Untrue. In order for a lubricant to be classified in any SAE grade (10W-'30
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