How Long Does Engine Oil Last - Southlake, TX

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How Long Does Engine Oil Last?

Generally speaking, synthetic motor oil will nearly always last longer than conventional oil, saving you time and money. But your specific synthetic oil change interval will depend on several factors, including operating conditions, motor oil quality and personal preference.

Why Does Oil Lose its Effectiveness?

Extreme heat hastens chemical breakdown (oxidation), altering the oil’s chemistry and preventing it from lubricating, cooling and protecting as designed. Sludge can form, which clogs narrow oil passages and prevents oil from reaching vital components, causing wear. Oxidation can also lead to increased oil viscosity, which negatively affects energy efficiency. Ultimately, the oil loses its effectiveness and must be changed.Contaminant build-up also affects oil life. Motor oil is formulated with detergent and dispersant additives responsible for holding dirt, soot (in diesel engines) and other contaminants in suspension and preventing them from depositing on engine surfaces or forming sludge. These additives are sacrificial in nature, meaning once they’re depleted, the oil’s effectiveness suffers and it must be changed.

Better Raw Materials Equal Better Oil

Like any other product, quality plays a big role, and in the case of motor oil helps determine service life and effectiveness. Synthetic motor oil is formulated using higher-quality raw materials than conventional oil, allowing it to perform better and last longer.

AMSOIL synthetic base oils don’t contain the impurities inherent to conventional oils, allowing it to more effectively resist chemical breakdown and extreme heat. Signature Series is also formulated with high-quality additives that effectively neutralize contaminants for long service life.

How Often Should Synthetic Engine Oil be Changed?

Most motorists now understand that synthetic motor oil performs better than conventional oil. It delivers improved wear protection, offers better engine cleanliness and lasts longer. Not as well understood, though, is how often you should change synthetic motor oil.

Not long ago, it was common to change conventional oil every 3,000 miles/3 months. The practice originated in the 1960s as a way to time oil changes with the seasons. The quick lube market picked up the idea as a way to keep traffic flowing, touting it as an “insurance policy” for your engine.

AMSOIL extended-drain synthetic motor oils, protect so well you can go longer between oil changes if you choose. Many motorists want to follow the guidelines in their vehicle’s owner’s manual. But lots of them still choose AMSOIL products that are capable of extending drains because they simply want maximum protection for their vehicles or the comfort of reserve protection should maintenance be delayed. Others desire the convenience of a once-a-year or twice-a-year oil change.

For these motorists, AMSOIL Signature Series Synthetic Motor Oil is guaranteed for 25,000 miles/12 months (15,000 miles/12 months in severe service). AMSOIL XL Synthetic Motor Oil is guaranteed for 10,000 miles/6 months, or longer where recommended by electronic oil life monitoring systems. They offer an outstanding combination of performance and value, guaranteed!

AMSOIL guarantees the performance of its products, so you can be confident they perform as advertised. AMSOIL introduced the world’s first API-qualified synthetic motor oil and has since introduced a full line of industry firsts. For more than 40 years, AMSOIL synthetic lubricants have proven themselves in the lab, on the racetrack and on the highway.

Why AMSOIL?- AMSOIL Signature Series Synthetic Motor Oil keeps your engine 5x cleaner than conventional oil can.

- AMSOIL shields your automobile with 75% more engine protection against horsepower loss and wear than required by a leading industry standard*, extending the life of vital components like pistons and cams.

- The base oils used in conventional oils contain molecules of different sizes and weights as well as unwanted materials, like wax. This typically requires more energy to circulate throughout your engine, which can reduce fuel economy. Conversely, AMSOIL synthetic motor oils are formulated using molecularly uniform synthetic base oils that slip easily over one another and are free of unwanted materials. They help reduce energy lost to friction and maximize fuel economy.

- If enough motor oil is consumed, eventually there may not be enough to reach all the complex parts of your engine, which can potentially cause damage. AMSOIL Signature Series 5W-30 showed 38% less oil consumption* than the tested conventional oil, requiring less-frequent top-offs.*Supported by NOACK Volatility test (ASTM D5800)

*Supported by NOACK Volatility test (ASTM D5800)

AMSOIL PRODUCT LINE

SIGNATURE SERIES

For those whose passion for their vehicle isn’t limited by minimum standards. Signature Series pushes the boundaries of lubrication technology to deliver protection and performance far past industry standards.

XL SYNTHETIC MOTOR OIL

Geared toward those who want to do something extra for their vehicle at the next oil change. XL Synthetic Motor Oil helps vehicles maintain like-new performance.

OE SYNTHETIC

Favored by mechanics and drivers seeking peace-of-mind protection and exceptional value in synthetic motor oil. It carries the leading industry approval found in your owner’s manual.

EUROPEAN

The ideal choice for drivers seeking the highest level of protection for their sophisticated gasoline or diesel European vehicle. It meets crucial specifications and carries approvals by leading manufacturers, including Porsche*, BMW*, Volkswagen* and Audi*.

TRANSMISSION FLUIDS

AMSOIL formulates a full line of synthetic automatic transmission fluids that meet the stringent demands of today’s transmissions, helping you get the most out of your vehicle.

SYNTHETIC DIESEL OIL

We engineer our synthetic diesel oils with the same passion and pride you put into your turbodiesel, providing protection you can depend on in the most severe operating conditions. Jump in and find out more.

MOTORCYCLE

That tradition of innovation and technological advancement carries on with AMSOIL Synthetic Motorcycle Oil. It is engineered to withstand the devastating effects of extreme heat. It features exceptional high-temperature film strength for maximum wear protection and delivers excellent wet-clutch performance and transmission protection. AMSOIL Synthetic Motorcycle Oil helps keep your bike operating at peak efficiency for the long-haul.

MARINE

As the technology used in today’s marine applications has evolved, AMSOIL has remained ahead of the curve in performance and protection with products formulated to deliver clean engine performance and control harmful deposits, wear and rust. AMSOIL synthetic lubricants are engineered to protect your watercraft in all conditions so you can remain carefree and on the water longer.

SNOWMOBILE

Whether you live to hit the trails with friends and family or carve the fresh mountain powder, you expect your sled to deliver peak performance no matter how hard you ride.