
EH oil, simply put, is the oil supplied to the DEH system. It is a high-pressure, flame-resistant, and explosion-proof oil specifically used in turbine systems to drive the opening and closing of turbine control valves. Below is a related introduction: 1. Composition of the EH oil system: The EH oil system mainly consists of an EH oil tank, EH oil pump, inlet and outlet valves, filter screens, control blocks, relief valves, accumulators, EH oil supply and return pipes, oil coolers, as well as a self-circulating oil filtration system and a self-circulating cooling system. 2. Oil tank: A container used to store the oil required for system operation. 3. EH oil pump: Adjusts the outlet oil pressure. 4. Relief valve: Installed to prevent excessive oil pressure in the EH oil system, ensuring the system pressure remains above 17 MPa. 5. Oil pump outlet filter screen: Used for filtration. 6. Accumulator: Ensures normal pressure throughout the system. 7. Oil cooler: Prevents the oil temperature from becoming too high, which could lead to softening, deformation, or burning accidents in the bearings. 8. EH oil supply and return pipes: Serve as the oil supply channels. 9. Self-circulating oil filtration system: An independent self-circulating oil filtration system is set up to ensure the cleanliness of the oil system. 10. Self-circulating cooling system: Under normal circumstances, the system's pressurized return oil is sufficiently cooled after passing through the return oil cooler.

Engine oil, to put it simply, is the maintenance oil inside the engine, specifically designed to make the engine run smoother and reduce friction between parts. It helps dissipate heat, preventing deformation caused by high temperatures, and also has a cleaning function, absorbing carbon deposits and impurities to avoid blockages. With over a decade of driving experience, I always strictly follow the manual's recommendations to choose the right synthetic or mineral oil, with viscosity matching the season and vehicle model. In summer, I use higher viscosity oil like 10W-40, while in winter, 5W-30 ensures easier starts. After an oil change, I noticeably feel reduced engine noise and lower fuel consumption. The recommended maintenance interval is every 8,000 kilometers—don’t wait until the warning light comes on, as that’s a big mistake.

This stuff is the protective agent for your car's heart. Without it, the engine would fail in no time. I always keep an eye on the oil change interval, usually checking it every 6 months or 7,000 kilometers to ensure sufficient oil level and clear quality. Engine oil also forms a protective film over metal parts, preventing rust and overheating. Choosing a reliable brand like Shell ensures better durability. Using the wrong viscosity or counterfeit oil can accelerate engine wear and double repair costs. So, I recommend new car owners not to skimp on small expenses—change the oil on time and pair it with a new oil filter. Developing this habit saves both money and hassle.

Engine oil is a lubricant that acts as a barrier to prevent direct friction in the engine. I know a bit about mechanics—it's classified by viscosity grades like 0W-20 for low temperatures, where the numbers indicate performance in different temperature ranges. Additives give it cleaning and anti-oxidation capabilities, with synthetic oil being more durable and efficient than mineral oil. Choosing the right one can extend your car's lifespan and ensure more stable performance during long-distance drives.


