Technology / product information

Why does oil become cloudy so quickly?

Technology / product information

~ Performance Degradation due to Contaminants/Water Ingress and Fundamental Countermeasures ~
Cloudiness in Appearance is a Warning Sign
- “The oil turns cloudy shortly after being replaced.”
- “Transparency deteriorates rapidly”
- “Valves malfunction without clear cause.”
These are critical early signs of oil quality degradation.
Cloudiness = visible evidence of contamination.
If left untreated, it can lead to performance decline, equipment failure, and equipment shutdown.
Why Does Oil Become Cloudy So Quickly?
The cause of cloudiness mainly comes from the following contaminants:
Contaminant
Water

Emulsion

Foreign matter / Fine particles
Oxidation Byproducts
Causes
Condensation, Humidity, Coolant Leakage
Mixing of Water and Oil

Wear Debris, Dust, Scale
Sludge from Thermal Degradation
Main Effect
Clouding, Emulsification, Corrosion, Oil Film Failure
Viscosity Changes, Foaming, Mechanical Malfunctions
Filter Clogging, Valve Seizing
Darkening, Viscosity Increase, Malfunction
➡ Even small amounts of these contaminants have a major impact on oil performance.
Troubles Caused by Reduced Oil Cleanliness
Phenomenon
Valve sticking

Pump seizure

Sensor malfunction

Increased oil change frequency
Background
Sludge Accumulation

Oil Film Failure

Caused by Moisture or Fine Particles
Inability to Maintain Cleanliness
Result
Abnormal operation, poor control
Costly component replacement required

Possibility of production line stoppage
Rising Costs, Waste Oil, and Labor
Conventional Countermeasure: Replace When Dirty → New Approach: Protect from Getting Dirty
Traditionally, the common approach has been to replace oil once it gets dirty.
But in recent years, the focus has shifted to protecting and regenerating oil itself, enabling longer continuous use.
The Fundamental Solution: Maintain Cleanliness with “Miracle Boy”
What is Miracle Boy?
It is a multifunctional adsorption-type oil purification device that simultaneously removes the three main contaminants that degrade oil: water, foreign particles, and oxidation by-products.
Three Mechanisms of Purification
Contaminant
Moisture/ Emulsion

Fine particles/ Foreign Matter

Oxidation sludge

Removal Method
Physical adsorption with absorbent (ppm level)
Deep-layer filtration structure (compatible with ≤ 3 μm)
Multi-layer structure for sludge decomposition and absorption
Effect
Prevents cloudiness, foaming, and corrosion
Protects valves and pumps

Stabilizes viscosity, suppresses darkening
➡ Restores transparency and maintains a cleanliness level exceeding new oil, over a long period.
Case Example: Changes After Installation (Press Processing Plant)
Indicator
Water Content (ppm)
Contamination (mg/100ml)
Valve Troubles

Before Introduction
1,200
5.7
2-3 times per month
After Introduction
75
0.1
0 times in 6 months
→ Cloudiness and milkiness were eliminated, and stable operation was achieved without oil replacement.
Summary: Ending the era of “Cloudiness is Inevitable”
- Cloudy oil is a sign that contamination is not being prevented.
- The new standard is to maintain performance without relying on frequent replacement.
- With Miracle Boy, oil cleanliness is preserved, and equipment is protected.
Moving Toward an Era of “Protective Oil Management.”
With Miracle Boy, achieve an oil environment free of cloudiness.

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