Do Synthetic Oil or Synthetic Oil Blends last any longer than do regular mineral oil formulations?
In this day and age of high performance extended drain interval synthetic lubricants, the 3000 mile petroleum oil change is, in our personal opinion, a plan to get consumers to change their oil more often and generate increased revenue. Petroleum oil has been proven to allow increased wear rates (based on comprehensive independent ISO certified ASTM laboratory test data) when compared to a premium quality synthetic oil like AMSOIL. When things wear, they eventually have to be serviced and/or replaced, and that means you then have to buy a new vehicle or other piece of equipment more often.
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Synthetic Oil is Superior to Mineral-Based Oil in Every Way:
Without getting too technical, suffice it to say that synthetics have a much higher resistance to heat than mineral-based oils. Because synthetic oil is composed of molecules that are uniform in weight and shape, its heat of vaporization is much higher (more than 600 deg. F.) compared to conventional oil, which begins evaporating at temps as low as 350 deg. F. This added stability at high temperature means that your hard-working engine wont burn up as much oil- and that means less sludge and fewer varnish deposits in the engine.
Added lubricity is another attribute of synthetics. The uniform diameter of synthetic oil polymers allows them to more easily slide over one another. The resultant reduction in friction shows up as more horsepower and torque and reduced internal engine wear.
Higher film/shear strength, however is one of the major benefits of synthetics. Film strength is what keeps oil molecules from being pushed away from each other under pressure. In an area where two metal surfaces meet, the film of oil between them prevents them from rubbing and wearing away at each other. Synthetics do a better job of this than conventional mineral oils. Synthetic oils does not shear as easily as petroleum oils and thus maintains a higher film strength and as a result does a better job at preventing wear, especially under extreme operating conditions. For more information on Amsoil products please visit http://www.wolfesynthetics.com
No, Synthetics require oil changes at the same oil drain interval as do regular mineral oil formulations. Here’s why: “Synthetic” refers to the base oil used, which is just one part of the formulation. The additive system used with the base synthetic oil is identical to that used in regular mineral oil formulations. These additives deplete at the same rate during engine combustion, whether in a synthetic or a regular oil. The base oils never wear out but they do become contaminated with combustion by-products when doing their job protecting the engine.
