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Contamination (oiling) of the engine

Long-term operation of the car in difficult conditions, overheating of the engine, increased pressure in the lubrication system, use of low-quality engine oils lead to wear and aging (loss of elasticity) of the rubber seals. As a result, traces of oil (oil stains) appear on the engine. These oil stains foul the engine's outer surface and cause ingress of abrasives (dust, sand, etc.) into the engine, thereby accelerating its wear.

In addition, the reduction of the cross-section of the passage openings and the control valve (tar deposits, slagging) in the crankcase ventilation leads to the increasing pressure of the crankcase gas and ejection of oil through the hole of the dipstick, valve cover gasket, fuel pump, ignition distributor, etc. The accumulation of crankcase gas degrades the properties and composition of the engine oil. Malfunctions in the crankcase ventilation do not significantly affect the operation of the ignition and fuel systems in engines with a carburetor system. In modern engines that use fuel injection systems, failures in the normal operation of the crankcase ventilation system can result in the complete loss of functionality of the engine control system.

Verschmutzung (Verölen) des Motors


To restore the elasticity of the working surfaces of rubber seals and eliminate oil leaks, use Atomex Stop Leak Engine – Oil additive to prevent leaks in the engine.

To keep the crankcase ventilation in working order, flush the oil system before changing the oil VitaFlush – Oil system cleaner (universal), or Atomex TotalFlush – Oil system cleaner with the effect of decarbonizing the piston rings, or Verylube oil system cleaner (quick or mild).

To remove oil stains on the engine's outer surface, use Verylube Engine Compartment Cleaner before cleaning.

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