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AMSOIL vs. Mobil 1: How We Perform

AMSOIL & Mobil 1 – Compared

Most lists of top-10 performance mods include a turbocharger, supercharger, nitrous oxide or updated engine tune. Increasing the engine’s oxygen intake also increases fuel, which boosts power.

“If you love Mobil 1 you should  use Dollar General motor oil. It’s real good too” lol…

While all that extra power is great, it puts additional demands on your engine oil.

(See our 5 Ways to Boost Horsepower for Under $500.)

Horsepower riding on a sheet of paper

Your main bearings – and, for that matter, the time, money and effort invested in your vehicle – rely on an oil film that’s thinner than a sheet of paper. Adding horsepower increases rpm and engine stress, placing even more stress on the oil. Many enthusiasts make compensatory upgrades to the crank, pistons, cam, etc. to handle the additional pressure.

The shear importance of oil 

In this scenario, upgrading the motor oil is often overlooked. But it’s an important consideration since engine upgrades can increase shearing forces, which result in viscosity loss. And viscosity is the most important property of oil.

Check out this post for details: What Does Viscosity Mean (and How Does it Affect Your Engine)?

Shear results when one layer of fluid moves in a direction different from another layer of the same fluid.

Shear (often called mechanical shear) occurs when one layer of oil moves in the opposite direction of another layer of the same oil. A great example occurs between the piston and cylinder wall. These two oil films move in opposite directions under intense heat and pressure. This is why high-horsepower, high-rpm engines create increased possibility for viscosity loss due to shear.

This scenario can shear, or tear apart, the molecules of viscosity-improver additives, which are used to extend the viscosity range of the base oil. The application and type of base oil determine the type of viscosity improver. Some viscosity improvers resist shear better than others. And some synthetic oils don’t need viscosity improvers at all due to their ability to withstand shear.

A breakdown in protection

If the oil loses viscosity due to shear, it can fail to provide the required level of wear protection. Think of the force transferred through the piston, rod and crank to the thin oil film protecting the bearing. There’s not much room for error.

AMSOIL uses naturally shear-resistant base oils combined with top-tier, shear-stable viscosity improvers. AMSOIL synthetic motor oil withstands extreme heat and shearing forces, exceeding industry standards and outperforming competing brands. In fact, it fights viscosity breakdown 46 percent* better than Mobil 1. It stands up to the devastating effects of high-horsepower, modern engines for maximum protection.

 

FIND AMSOIL FOR MY VEHICLE

*Based upon independent testing of Mobil 1 Annual Protection Full Synthetic and AMSOIL Signature Series 5W-30 in the Kurt Orbahn test, oils purchased on 05/03/18.

Safetey changing oil at 3,000 Mile? Why not 50 or 100 miles?

Busting the 3,000 Mile Oil Change Myth

Changing your oil every 3,000 miles is a practice passed down for generations. The origin likely stems from the noble effort to provide consumers with a simple vehicle-maintenance rule that left plenty of room for error.

Marketed by fast lubes

Fast lube chains, which first entered the market in the 1970s, adopted and amplified the message through sustained marketing campaigns. Owned by major oil manufacturers, fast lube chains had a financial interest in seeing customers frequently and selling more oil, the vast majority of which was conventional.

Endorsed by your dad and mechanic

While this timeline helps provide context, it does little to address the emotional connection to changing oil every 3,000 miles. The reason so many motorists dutifully change oil every 3,000 miles is because their fathers and their mechanics – two of the most influential groups in automotive circles – told them they should. For many people, the 3,000-mile oil change is a tradition that ties them to the person who taught them many important life lessons, like how to keep your car running properly.

Tradition updated with new technology

Many families pass down traditions, and while the spirit of the tradition is upheld, many elements are updated to reflect current technology and lifestyles. Your call to a distant relative during the holidays may now require Skype instead of a rotary phone. Likewise, your annual family vacation may start at the airport instead of in the family station wagon. In the case of the 3,000-mile oil change, we can preserve the noble spirit of taking good care of our vehicles by establishing a habit of changing oil periodically, but not necessarily every 3,000 miles.

Since the advent of the 3,000-mile oil change, advances in lubrication and automotive technology have rendered it outdated, like adding water to automotive batteries, replacing ignition points and adjusting the carburetor. Now, many vehicle manufacturers recommend changing oil every 5,000 miles or longer, with BMW calling for 15,000 miles between oil changes.

Synthetic motor oil technology

Synthetic lubrication technology plays a significant role in moving beyond the 3,000-mile oil change interval. Synthetic motor oil offers better wear protection, improved resistance to temperature extremes and increased cleanliness properties compared to conventional oils. For that reason, it’s safe to use them longer than 3,000 miles.

AMSOIL products provide confidence with additional protection that goes beyond the standard. It’s what your dad or grandfather may have called the “belt and suspenders” approach. For example, AMSOIL Signature Series Synthetic Motor Oil…

  • Provides 75% more engine protection against horsepower loss and wear than required by a leading industry standard.¹
  • Achieved 72% better protection than required by a leading industry standard2, providing ultimate protection against extreme heat and the harmful deposits that can plague turbochargers.
  • Achieved 100% protection against LSPI.3

So, while it’s vital to change your oil and take care of your vehicle, it’s also important to advance your methods in lockstep with the latest technology. And modern synthetic oils have made the 3,000-mile oil change as dated as the rotary phone.

FIND AMSOIL PRODUCTS FOR MY VEHICLE

1Based on independent testing in the ASTM D6891 test using 0W-20 as worst-case representation.
2Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
3Based on independent testing of AMSOIL Signature Series 5w-30 motor oil in the LSPI engine test as required for the GM dexos 1® Gen 2 specification.