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Reduced compression pressure in the barrel. What to do?

To maintain an engine in its optimal condition it is often not enough to just change the engine oil and the oil filter since deposits commonly still remain in the crankcase, oil lines or other components of the oil circuit. As a result clogged oil channels prevent a fast lubrication of the engine leading to increased wear. The function of the piston rings can also be severely impaired by contamination, which results in a loss of compression in the cylinders.

BIZOL Pro Oil System Clean+ p91 ATTENTION! Never use it for motorcycles with a wet clutch. - improved compression through clean engine components - optimum engine performance regained with corrected compression, reduced fuel consumption and CO2 emissions - faster lubrication of the engine with clean oil ways and prolonged life of the fresh oil by reducing the deposits

Pro Oil System Clean

BIZOL Pro Oil System Clean+ p91


  1. reduced fuel consumption and CO2 emissions
  2. prolonged engine life
  3. improved compression

Product Description

By adding BIZOL Pro Oil System Clean+ p91 before changing the engine oil, residues not soluble in oil are dissolved by the highly-effective detergent additives and flushed out together with the oil change. It has been proven that such cleaning can correct loss of compression and very possibly enable the engine to regain its optimum performance. Furthermore, clean oil ducts allow for fast circulation of oil through the engine especially on cold-starting, which in turn reduces the wear on engine components and also reduces fuel consumption while leading to improved exhaust emission values.

Available Packages

Article Nr.Size in Litres
8101500 ml

How to use

A can is sufficient for 3,5 – 6,5 L oil. Add BIZOL Pro Oil System Clean+ p91 to the motor oil at its running temperature before oil change. Allow the engine to idle for 10-15 minutes depending on the degree of contamination. Then change the oil and the filter. BIZOL Pro Oil System Clean+ p91 is compatible with all commercially available motor oils.

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