What to Do When Engine Oil Pressure is Insufficient?
3 Answers
If the engine oil pressure is below 0.2Mpa, or if the oil pressure fluctuates, it indicates a fault in the lubrication system, and the insufficient oil pressure must be promptly investigated and resolved. Here are the relevant details: 1. Insufficient oil in the oil pan: If the oil level is low, the oil pump's output decreases and may even draw in air. The oil should be topped up according to specifications. If the low oil level is due to oil burning or leaks, these issues must also be addressed. 2. Oil quality does not meet requirements: Different engine models require different grades of oil, and even the same model may need different oil specifications depending on the season. Using the wrong oil can lead to excessively thin viscosity and insufficient pressure. Always use the recommended oil. Additionally, prolonged use of oil can cause oxidation and degradation, reducing viscosity and lubrication performance, so timely replacement is essential.
Don't ignore the engine oil pressure warning light. Last time I encountered this, I immediately pulled over and turned off the engine. After the engine cooled down, I checked the oil level with the dipstick and found it was below the minimum mark. I quickly added spare oil from the trunk. If the light hadn't gone off, I would have called for a tow truck. The mechanic later told me it was due to a leaking oil pump seal and clogged oil filter from not changing the oil for six months. Now I check the oil level monthly and always before long trips. If I notice the level dropping quickly, I get maintenance done early—after all, an engine overhaul costs several times more than replacing an oil pump.
When encountering insufficient oil pressure, my first reaction is to stop and inspect. First, check whether the dashboard shows a flashing or steady red light—if it's continuously lit, do not restart the vehicle. Open the hood and check the dipstick; if the oil level is normal, it might be a sensor false alarm. However, if you smell burning or hear abnormal metal friction sounds, there's a high chance the lubrication system has failed. My car had this issue before, and the mechanic resolved it by using a high-pressure air gun to clear the oil passages. Now, every time I change the oil, I personally supervise the replacement of the filter. If the mechanic recommends a deep cleaning of the oil passages, I follow through to prevent debris buildup from affecting oil supply efficiency.
