By Roy Denish
A major counterfeit engine oil crackdown has exposed alleged fraudulent practices at vehicle service centres, raising fears that thousands of motorists may have unknowingly paid for fake lubricants capable of causing catastrophic engine damage.
Next time your fleet or personal vehicle undergoes routine preventative maintenance, verifying the fluid specification integrity of the replacement lubricant is critical to ensuring operational reliability.
An anti-counterfeiting enforcement action led by the Colombo Crimes Division (CCD) has disrupted an illicit network distributing suspected off-spec, counterfeit finished lubricants. The targeted fluids falsely bore the trademarks of premium global brands, specifically Caltex and Delo, represented locally by legal counsel Sudath Perera Associates.
The enforcement actions, executed on 2 June 2026, targeted two retail outposts, SF Marketing in Mawanella and J.W. Auto in Kegalle, which were both suspected of trafficking unverified formulations packaged as high-performance engine oils. Following the initial complaint, search warrants were granted by Magistrate Judge U.L.W. Ahamed of Mawanella and Magistrate Judge Mohammed Faiz Zammuth Jahan of Kegalle.
At J.W. Auto, field officers seized four partially filled, unsealed drums—three branded as Caltex and one as Delo. The fluids were being retailed significantly below market value, which is a common indicator of compromised base stocks or non-compliant additive packages.
At SF Marketing, the investigation expanded exponentially when interrogations led CCD personnel to three secondary storage locations, ultimately uncovering a major stockpile of illicitly branded drums. The case against J.W. Auto is logged under Case No. B/58709/26 in the Kegalle Magistrate’s Court, while SF Marketing is being prosecuted under Case No. B/21492/26 in Mawanella. Both defendants have been released on Rs. 10 million surety bail pending trial.
Genuine lubricants undergo rigorous laboratory analysis to certify their kinematic viscosity, shear stability, and Total Base Number, which measures an oil’s capacity to neutralize corrosive acids. Counterfeit fluids bypass these quality control standards entirely, introducing catastrophic risks to mechanical systems and setting off a hidden, destructive chain reaction inside a vehicle’s engine.
Because these illicit fluids are usually made from cheaply filtered waste oil or raw base stocks completely lacking an engine’s required chemical additives, the mechanical consequences are severe and often irreversible. An engine relies on a microscopic layer of oil to keep moving metal parts from physically touching.
Genuine oils are engineered to maintain a specific viscosity under high heat and pressure, but counterfeit oils lack this thermal stability and thin out rapidly under normal combustion temperatures. This causes the protective hydrodynamic oil film to collapse, forcing the engine into a state of boundary lubrication where metal surfaces, such as pistons, cylinder walls, and camshafts, grind directly against each other.
Without crucial anti-wear and extreme pressure additives like Zinc Dialkyldithiophosphate, the friction between fast-moving components generates extreme localized heat. This friction rapidly scores precision components and creates microscopic metal shavings.
As these sharp metal fragments flake off into the oil stream, they are pumped back through the engine and act like liquid sandpaper, accelerating the tribomechanical wear and destruction of the crankshaft bearings, lifters, and piston rings.
Authentic lubricants also contain heavily calibrated detergents and dispersants designed to suspend combustion byproducts and keep internal surfaces clean. Counterfeit fluids possess no such cleaning properties, meaning that when they are exposed to engine heat, the unstable fluid rapidly undergoes thermal-oxidative breakdown and bakes onto internal components.
This forms a sticky black sludge and hard varnish that clogs the oil pickup screen and narrows internal oil galleries, eventually starving the top end of the engine of oil and causing sudden, catastrophic mechanical seizure.
The ramifications of counterfeit oil extend far beyond the core engine block into downstream vehicle systems. Because the engine must fight massive internal friction just to turn the crankshaft, the vehicle experiences a significant drop in fuel efficiency, forcing the engine to consume substantially more fuel.
Furthermore, the unrefined, highly volatile base stocks used in fake oil often blow past degraded piston rings and burn directly in the combustion chamber. This produces highly toxic, unmanaged emissions that quickly poison and permanently degrade modern emissions aftertreatment systems, including catalytic converters and diesel particulate filters, leading to extensive and incredibly costly vehicle repairs.
Trafficking in these uncertified and counterfeit lubricants violates the Intellectual Property Act No. 36 of 2006, as these operations jeopardize consumer assets, breach environmental compliance standards, and cause severe revenue and brand equity degradation for legitimate energy companies.
Investigations remain active as forensic fluid analysis continues, and the CCD is expected to submit supplementary technical and evidentiary findings to the respective courts as the prosecution proceeds.
