Determining the right time to change diesel engine oil is crucial for maintaining engine performance and longevity. Changing the oil too late can lead to increased mechanical wear, while changing it too early results in unnecessary waste. Typically, oil change intervals are based on manufacturer recommendations. However, since the oil change period directly relates to the engine's condition, operating environment, and oil quality, it's important to adjust the schedule based on actual circumstances. If the locomotive's condition is poor or the oil quality has significantly degraded, it may be necessary to change the oil earlier than scheduled.
(1) A simple method to assess oil condition is by comparing new and used engine oil on a white filter paper. If the used oil shows more black spots, it indicates that the oil is still in good condition and doesn't need to be changed. On the other hand, if the oil appears dark brown, it’s a sign of deterioration and should be replaced immediately.
(2) Another practical test involves using two small glass tubes—each 0.5 cm in diameter and 20 cm in length. Fill each tube with 19 cm of new and used engine oil, respectively. Seal both tubes and invert them at the same time, then observe and record the time it takes for bubbles to rise. If the difference in bubble rising time exceeds 20%, it suggests that the viscosity of the used oil has dropped significantly, and the oil should be replaced.
In addition to these methods, regular monitoring of oil pressure, temperature, and contamination levels can also help determine when an oil change is needed. It’s always a good idea to keep a log of oil changes and performance metrics to track trends and make informed decisions. By combining these tests with real-world experience, you can ensure optimal engine protection and efficiency.
Fish,Frozen Fish,Frozen Fish Fillets,Fresh Hairtail Section
Zhoushan Haiwang Seafood Co., Ltd. , https://www.haiwangseafoods.com