Top Five Car Engine Problems Explained

PROBLEM No. 1. CORROSIVE WEAR OF THE ENGINE PARTS

Question: How does corrosion in the engine appear?

Reference of MITASU OIL expert: Corrosion appears as a result of the action of organic and mineral acids in the motor oil operation mode.

Question: How do organic acids form in oil and what effect do they have on the engine parts?

Reference of MITASU OIL expert: Occurrence of the organic acid oil is caused by oxidation of oil hydrocarbons, which continuously occur when the motor operates in the process of the air oxygen effect. The corrosive effect of organic acids on metals is especially evident in the presence of oxygen and water.

Organic acids, which almost do not impact on steel and cast iron, have a destructive effect on non-ferrous metals and especially, on lead being a part of leaded bronze, from which base and crankpin bearings of the crank shaft are often made. The availability of organic acids in oil is a peculiar integrated value of oil corrosive aggressiveness and its potential tendency for lacquer film formation and carbon buildup on the parts of the diesel sleeve group.

Question: How do mineral acids form in oil and what effect do they have on the engine parts?

Reference of MITASU OIL expert: The presence of mineral acids in oil increases its corrosive activity, mainly, in relation to cast iron and steel, as a result of which a heavy wear of the cylinder bushings, first of all, occurs. The mineral acids, namely, sulphuric acid, enter the oil film on the cylinder bushing mirror at condensation of the end product of poor fuel combustion.

Question: How does poor fuel influence on the engine parts' corrosion?

Reference of MITASU OIL expert: Poor fuel is characterized mainly with the increased sulphur content. The higher the content of sulphur in fuel, the more difficult the oxidizing process is.

Question: How one can decrease corrosion on the motor parts?

Reference of MITASU OIL expert: To prevent from occurrence of corrosive wear of the engine parts the high-quality motor oil should contain an optimal balanced set of neutralizing additive agents. At this account a constant excess of oil alkalinity is achieved and this promotes neutralization of acids formed in the film and prevents the wearing surfaces of the parts from corrosive destruction. In all oils produced by MITASU OIL CORPORATION, Japan, a set of high-technology neutralizing additive agents produced by the leading world manufacturers is used, by virtue of which a stable anti-corrosive effect is achieved.