THE INFLUENCE OF THE APPLICATED ON THE FILTERING PAPER MOTOR OIL QUANTITY ON ITS INDICATORS’ EVALUATION

Abstract

The most common method of controlling the motor oil detergent-dispersant properties is the «drop sample» method (the applying process of the engine oil drop to the filter paper -»blue tape» and the calculating process of the drop sample with an oil stain characteristics). The characteristic zones’ size and the entire oil stain depends on the engine oil condition, but the amount of applied engine oil is affected to the large extent by the size of the oil stain. The stability of the oil droplet mass increases the monitoring accuracy of the engine oil. The article clarifies how much the motor oil droplet mass varies when applied by the same way. The simple and low-cost products are used to apply the motor oil drop. The evaluation is carried out by measuring the certain number of drops masses on high-precision scales. The errors which occur when the engine oil drop is applied to the filter paper-»blue tape» and their influence on the final result are estimated. The conclusions about the significance of the motor oil droplet mass changing which could influence on the characteristic zones’ size of the drop sample are made.

Keywords

• motor oil
• detergent-dispersant properties
• indicators’ evaluation
• drop test
• oil stain