What Contaminates Oil?

When operating internal combustion engines, the most serious threats to oil are: excessive soot contamination, which can also be caused by the exhaust gas recirculation system, fuel dilution and coolant contamination.

First eliminate the cause, and then the contaminated oil / and filter / replace with a new one.

When changing the type of oil, the following conditions must be taken into account: the new oil must comply with the manufacturer's recommendations in the operating manual not only for viscosity, for example, SAE 5W / 30, but also for the oil quality class, for example API III. It is also beneficial to check whether the selected oil is approved the manufacturer of the engine that drives the car. If this is not the case, please select a different view.