"Mobil1 EP Field Testing." (February 13, 2009)
Engine Mechanics, Integrated Publishing. "Synthetic Oil Saves Gas." April 18, 2008. ExxonMobil Lubricants and Specialties, Global Flagship PVL Technical Advisor. "Synthetic or Mineral Oil? Setting the Record Straight (Finally).". However, even as the future of the automotive industry remains a bit of a mystery, the future of synthetic oils seems assured. Even the power plant that generates the electricity that charges the vehicles will need industrial-grade synthetic oils for the moving parts of its machinery.Īs the government mandates emissions improvements, oil manufacturers will have make significant investments to implement the necessary changes - to the tune of tens of millions of dollars in research and testing. Electric vehicles, for example, might not need motor oil, but they come with lubricated bearings and any gearboxes would also need to be lubed. High-quality synthetic oil can enable manufacturers to decrease the size of the oil sump required for the engine, run the engine at hotter temperatures and use turbochargers as well.Īs cars move toward using alternative fuels, synthetic oil makers are shifting their scope. That's one of the roles of lubricants going forward. But the question is becoming one of power density, or the need to build smaller, more efficient engines capable of increased power. Modern engines are capable of putting out massive power, and the numbers are increasing (the Bugatti Veyron, for example, has over 1000 hp). However, make no mistake: Horsepower is still important. Sure, lab testing's great, but how do these oils perform in the real world? Let's explore the advantages of synthetic oil on the next page. In all of these tests, synthetic oils perform better than their mineral oil counterparts, thanks to those uniform molecules. The lower the NOACK volatility number, the better it means there are fewer molecules being lost, which means fewer top-offs at the local lube shop. As temperatures rise, smaller molecules vaporize, leaving behind larger molecules that can make oil more sluggish and less viscous. NOACK Volatility Number: Volatile compounds are unstable and tend to vaporize when exposed to heat, and this test measures that tendency. Total Base Number: The "base" in this context is the opposite of "acid." The total base number measures the oil's ability to withstand acid buildup in the engine. In a perfect world, the viscosity of the oil wouldn't change at all and would provide optimum protection under any conditions. A high viscosity index means the oil doesn't change too much, no matter what the temperature inside the engine may be. If the oil is too thin or too thick, the oil can't do its job properly. 
When oil is heated, it becomes thinner when it's cooled, it becomes thicker.
Viscosity Index: This measures the effect of temperature on oil viscosity, or the oil's thickness and ability to protect the engine.
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