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Yellow 1970 Mustang with side pipes

Industry Standards require a minimum amount of rust and corrosion protection inhibitors

AMSOIL adds more to Z-ROD Synthetic Motor Oil

One of singer/songwriter Neil Young’s most critically acclaimed albums is titled “Rust Never Sleeps.” Although the title was a nod toward the need to avoid artistic complacency, it can just as easily serve as a reminder that rust and corrosion are constantly trying to degrade our vehicles and equipment.

Practically everything eventually rusts or corrodes. Well, almost everything. Pure gold doesn’t react with oxygen, meaning gold corrosion is extremely rare.

But our engines, vehicle frames, UTV suspensions, trailer hitches and other components rust or corrode unless we’re diligent about maintenance.

While it’s easy to spot rust or corrosion on the outside of a vehicle, it can also form inside the engine, which is especially destructive. That’s what we want to talk about.

First, however, what are “rust” and “corrosion?” What’s the difference between the two?

Corrosion refers to the gradual breakdown of metal via chemical reactions with the environment. Metal reacts with oxygen and begins to deteriorate. Metal can also react with acidic gases, like the byproducts of combustion. Without intervention, the metal will eventually weaken and fail.

Rust is a type of corrosion that specifically affects iron and iron alloys, like those used to manufacture most internal engine parts. We’re all familiar with the telltale reddish-brown scale that forms on iron over time. Once rust forms, it spreads quickly and wreaks havoc on your vehicles and equipment.

Certain conditions invite and hasten rust and corrosion. Folks who live where salt is applied to the roads in winter know this all too well. I bet the salvage yards around here are filled with more vehicles due to rust than engine or transmission failure.

Moisture also invites rust and corrosion. Leave your truck outside in the rain for a day or two. The next time you drive, don’t be alarmed at the grinding noise when your first apply the brakes – it’s just the brake pads scrubbing the veneer of rust off the rotors.

If rust forms inside your engine, it can flake off and populate the oil with contaminants. These tiny metal particles will circulate through the engine and scour bearings and other components before lodging in the oil filter. Eventually, the engine may suffer compression loss and reduced power due to piston-ring wear. The cam lobes can also wear, affecting valve lift and duration, which reduces power and efficiency.

Although most motorists don’t realize it, motor oil doesn’t naturally resist rust or corrosion. Special inhibitors must be added to the formulation that provide anti-rust and anti-corrosion properties.

Because we use our daily drivers so frequently, rust and corrosion don’t have time to form inside our engines, meaning most passenger-car/lighttruck oils don’t contain these additives.

But, what about your hot rod, sports car or show car you drive all summer and store during winter?

AMSOIL Z-ROD Synthetic Motor Oil protects against rustSitting inside a damp garage for months with motor oil in the sump contaminated with acidic combustion byproducts creates the perfect environment for rust. That’s why we formulate Z-ROD Synthetic Motor Oil with potent additives that prevent rust. You can see how it performs compared to a leading competitor in the image above. The oil coats metal surfaces and provides a resilient layer of protection against rust. Not all oils prevent rust, but AMSOIL Z-ROD is the perfect solution.

 

 

 

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