Determining the Value of the Viscosity Coefficient of Pertalite Gas Stations and Retail Filling Stations Using the Logger Pro Application

This study aims to determine the absolute viscosity value of pertalite fuel sold at gas stations and retail. The method used is an experiment with video analysis assisted by Logger Pro software. number retail samples tested consisted 5 taken from different places. research step analyze recorded on motion a falling object, namely iron ball (Gotri) into fluid (pertalite fuel) logger pro software then track recording obtain terminal time speed data. From results velocity it calculated equation. test showed that there was no significant difference between those evidenced average coefficient Pertalite 0.4074 (Ns/m²) while 0.4019 (Ns/m2). These conclude in East Ogan Komering Ulu area still maintains quality so safe for vehicle engine performance.