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What is Synthetic Motor Oil?

What is Synthetic Motor Oil?

As most of my friends know, and you now as well, I listen to audio books during my daily commute. My current book, about history’s first billionaire, is titled “Titan: The Life of John D. Rockefeller, Sr.” It’s a massive book about a massively complex man, and it’s been a fascinating “read.”

Here are a few things I’ve learned:

1) Like most historical figures, there is a complex human beneath the reputation. Rockefeller has been called the most feared and ruthless businessman in our history, and simultaneously the most generous.

2) Kerosene was the main consumer product derived from crude oil at the time. The internal combustion engine did not yet exist, but Rockefeller grew rich thanks to the abundance of kerosene lamps in the nation’s homes.

3) Pennsylvania was the first region in which oil was discovered. Eventually, oil was found in Lima, Ohio, but its composition was chemically different, and the kerosene left a film on the lamps.

4) Lubricants literally played a major role in greasing the wheels of progress. The Industrial Age was all about machines enabling industry to be more productive, which generated wealth for industrialists.

5) Around the time the electric light bulb was replacing kerosene lamps, cars were replacing the horse and buggy. The 20th Century became the century of Big Oil.

The Drake Well in Pennsylvania has been called the first oil well.

Well…that’s a deep subject

If it seems like I’m not answering the question posed in the headline, it’s because I wanted to bring you in through a back road. Item three in the above list notes that oil is chemically different based on its origins. I learned this years ago because my West Virginia kin had an oil well. I remember walking up the hill to the well when I was young. The adults discussed how the oil company said the oil was not worth as much as higher-quality crude. I may have my facts jumbled, but I believe they said it would be suitable for natural gas and would therefore not fetch as much money.

Distillation nation

Crude oil contains hundreds of different kinds of hydrocarbons. Oil refineries distill crude and separate it into various products, like gasoline, jet fuel, diesel fuel, heating oil and asphalt. And the base oils that go into motor oil.

Refining is a process of physically separating light oil components from heavy ones. Crude oil contains a multitude of different kinds of molecules. Many are similar in weight, but not in structure. The refining process cannot distinguish such molecules, so a wide assortment of molecules is present in the finished lubricant made from crude oil stocks.

Some crude oil molecules are not beneficial to the lubrication process. For example, paraffin causes refined lubricants to thicken and flow poorly in cold temperatures. Molecules containing sulfur, nitrogen and other elements invite the formation of sludge and other by-products of lubricant breakdown, especially in high-temperature applications.

The assorted molecules of refined lubricants also have different shapes, making lubricant surfaces irregular at the molecular level. As lubricant layers flow across one another during the lubrication process, these irregularities create friction, which consumes power, reduces efficiency and increases heat and wear.

How synthetic oil is different

Rather than being refined from crude oil, synthetic lubricants are chemically engineered from pure chemicals using a process called organic synthesis. Organic synthesis is when you combine two things from nature to create something that does not exist naturally. This process gives synthetic oils significant advantages over refined oils.

Products made from a barrel of crude.

Synthetic oil molecules are uniform, not irregular. This uniformity helps them resist thinning in heat and thickening in cold, which improves protection throughout the engine’s operating temperature range.

Their molecular uniformity also reduces friction as the lubricant’s layers slide across one another. Reduced friction increases energy efficiency for greater fuel economy and maximum power. It also reduces heat and wear for longer equipment life.

Another feature of synthetic oils is that they are designable. Many different kinds of base oils may be used to create synthetic lubricants, allowing a synthetic to be designed for virtually any application. Some base oils are ideal for use in extremely cold environments. Others are perfect for use in extreme heat. Some are extremely safe in applications in which refined lubricants pose a fire or explosion hazard. Refined oils simply do not offer the design flexibility of man-made synthetic oils.

This design flexibility allows synthetics to be tailored to the needs of everyday applications, such as automotive engines, commercial equipment or industrial machinery. That specificity helps ensure maximum life, horsepower, performance and fuel economy from the lubricated system.

Bottom Line

If all this seems a little technical – to be honest, I did take a little heat for writing such a technical post this week – here’s all you really need to know about synthetic and conventional oils. The AAA made a big splash this summer when it laid out its findings in a study that demonstrated the superiority of synthetic oils. Everyone seems to be talking about it, from the AutoBlog to The Drive and even the folks at Business Insider. The titles are pretty straightforward, but I especially like the one from BI: “A new study by AAA puts to rest one of the most common questions car owners have.”  In other words, “that settles it.”

Now for the next question: What are you going to do about it?

Here’s my recommendation. Visit this page and find the AMSOIL synthetic lubricants for your vehicle. Experience firsthand what “better” really means.

Solve ethanol issues before they arise

Prevent Ethanol Issues Now

The fuel some love to hate isn’t the problem – letting gasoline sit too long is the real problem.

Len Groom | TECHNICAL PRODUCT MANAGER

How did an alternative fuel made mostly from corn grown in the Midwest become a political lightning rod?

Whatever the reason, ethanol is always a controversial topic. Some love it, citing its ability to reduce our dependence on foreign oil while supporting American jobs. Some hate it, saying it reduces fuel economy and wastes farmland that could be used to grow food.

I’ll leave that debate to someone else. Instead, I want to talk about the effect ethanol can have on fuel-system components, especially in powersports and lawn & garden equipment – and what you can do to avoid those problems.

What is ethanol?

But first, some background info. Ethanol is an alcohol fuel derived from plant materials, such as corn, barley or wheat. It’s mixed with gasoline at different ratios to produce the fuel you buy at the pump. Most of us are familiar with E10, which is gasoline that contains up to 10 percent ethanol. Today, E15 is becoming more common. And owners of flex-fuel vehicles designed to run on increased concentrations of ethanol can opt for E85.

The upside of ethanol

Years ago, lead was added to gasoline to, among other things, boost octane rating and help prevent engine knock. It turned out lead poisoned catalytic converters and harmed the environment, so it was replaced by methyl tert-butyl ether (MTBE). However, MTBE was shown to damage the environment if leaked or spilled. Today, ethanol has replaced MTBE as a more environmentally friendly means of boosting octane.

Fuel-system problems

That brings us to a major knock on ethanol – it’s propensity to degrade rubber and plastic fuel hoses and carburetor components. Ethanol can cause gaskets and fuel lines to harden, crack and then leak. It can also cause aluminum and brass fuel-system components to corrode and develop a white, flaky residue that clogs fuel passages. Some marina personnel I’ve talked to say up to 65 percent of their repair orders are attributed to fuel-system problems.

PHASE SEPARATION

Ethanol isn’t to blame

While ethanol has become a popular scapegoat for mechanics, especially in the marine industry, it isn’t the enemy – time is the enemy. Why do ethanolrelated problems affect powersports and lawn & garden equipment more than your car or truck? Because your boat or lawnmower can sit idle for weeks or even months. During that time, the fuel can absorb moisture since ethanol has an affinity for water. That’s why ethanolrelated problems are so common in marine applications. Water can break the molecular bond between gasoline and ethanol, causing the water/ethanol mixture to separate from the gasoline and fall to the bottom of the tank. This is known as phase separation, and you can see an example of it in the image above.

Phase separation causes a couple problems. The engine can draw the ethanol/ water mixture into the carburetor or injectors, leading to a lean-burn situation that can increase heat and damage the engine. In addition, the gasoline left behind no longer offers adequate resistance to engine knock since the ethanol that provides the increased octane the engine needs has separated from the gasoline. Burning low-octane gas can cause damage due to engine knock, especially in two-stroke engines. Finally, if your boat, lawnmower or other piece of equipment sits unused, the water/ethanol mixture can slowly corrode aluminum and brass fuel-system components, not to mention rubber and plastic fuel lines and gaskets. Eventually those components fail and require replacement.

Driving your car or truck almost every day doesn’t allow enough time for phase separation to occur, which is why we don’t see these issues nearly as often in the passenger car/light-truck market.

Prevention is the best solution

Although some fuel additives on the market claim to reverse the effects of phase separation, there’s no way to reintegrate gasoline and ethanol once they’ve separated. Instead, it’s best to prevent it.

One solution is to use non-oxygenated, ethanol-free gas in your powersports and lawn & garden equipment. It costs a little more, but it eliminates problems associated with ethanol. Another solution is to treat every tank of fuel and container of gas with AMSOIL Quickshot®. It helps keep water molecules dispersed in the fuel to prevent phase separation. It also cleans varnish, gums and insoluble debris while stabilizing fuel during short-term storage.

It’s a great way to avoid ethanol-related problems and keep your equipment protected. There’s nothing controversial about that.