Studi perbandingan viskositas dan kelayakan beberapa merek oli SAE 10W-40 menggunakan prototipe alat falling ball viscometer
DOI:
https://doi.org/10.36456/waktu.v23i1.9690Keywords:
Kinematic Viscosity, Falling Ball , Viscometer (FBV), Oil Viability MeasurementAbstract
The determination of oil quality in conventional engine vehicles is carried out by measuring the coefficient of viscosity and kinematic viscosity. Good kinematic viscosity should not decrease by more than 50% from its initial value. This research uses the Falling Ball Viscometer (FBV) method to measure the viscosity of five brands of SAE 10W-40 oil: Enduro 4T Racing, Shell Advance 4T, Castrol Power 1 4T, Fastron Techno, and Mobil Supermoto at temperatures of 40°C and 100°C. Testing was performed on new oil and after traveling 3000 km. The results showed a decrease in kinematic viscosity by 21%-42% at 40°C and 24%-30% at 100°C. The device uses a reed switch magnet sensor and Arduino UNO microcontroller to process and display data on an LCD. The comparison between the device and manual measurement showed a difference of 0.12-0.7 at 40°C and 0.06-2.16 at 100°C, with an average correction of 0.84-1.5 at 40°C and 0.23-0.40 at 100°. This research is crucial for vehicle users as it provides more accurate information regarding the degradation of oil quality after usage, helping users determine the optimal time for oil replacement to maintain fuel efficiency, performance, and engine durability. For the lubricant industry, the findings of this research can be utilized to improve oil formulations that are more resistant to viscosity reduction due to temperature and mileage, thereby meeting higher quality standards in the market.
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