Can the oil filter still be used if it gets water inside?

[Lena]

It is best not to continue driving, as failure to address the issue promptly may risk engine damage. Below are the detailed explanations: 1. Reasons: When engine oil contains excessive water, its performance will degrade. Under certain conditions, excessive water can reduce or even nullify the effectiveness of certain additives in the oil, thereby disrupting the oil's viscosity. This prevents the oil from forming a proper lubricating film on the friction pairs of moving parts, leading to mechanical damage or even failure. Minor cases may cause the engine to overheat, while severe cases can result in issues like cylinder scoring or bearing seizure, and in extreme cases, total engine failure. 2. Identifying water in engine oil: Observe the oil dipstick—if the water content is high, the oil level will exceed the marked range on the dipstick; check the engine coolant—if engine oil is present in the coolant, it indicates water contamination in the oil; if the oil contains water, after the engine runs for a while, the oil will appear milky white with foam.

[Jane]

I've been driving for over 20 years and have personally witnessed many cases of oil filter water ingress. That time when the car wash was too intense, water got into the engine, seeped into the filter, turning the oil milky white. The car made creaking noises when running, and the engine was severely worn, almost ruined. You absolutely must not continue using it after water ingress because water contaminates the oil, reducing its lubricating ability. This increases friction in components like bearings and pistons, making them prone to wear. The filter paper in the oil filter swells and breaks when soaked in water, losing its filtering effectiveness and allowing impurities to enter the oil passages. You might manage to drive short distances with some noise, but long-distance driving carries high risks. Damaging the engine could cost over ten thousand yuan to repair. I recommend replacing the filter immediately and checking the cause of the water ingress, such as overly aggressive car wash water jets or aging seals. Don't skimp on these few tens of yuan in costs—regular maintenance can save you big money. Safety first, don't take risks, brother.

[Finn]

Having worked in an auto repair shop for a long time, I've handled many cases of water entering the oil filter. The filter's role is to remove contaminants from the engine oil. When water mixes in, it compromises the oil's lubricating properties, leading to increased risk of rust and corrosion inside the engine. The filter paper structure gets damaged by water, rendering the filtration completely ineffective. While driving short distances at low speeds with a water-logged filter might seem harmless, the risk of engine overheating and cylinder scoring significantly rises during high-speed or heavy-load conditions. It's crucial to replace the filter immediately and identify the source of the leak—whether it's due to improper engine sealing or a previous repair oversight. Never cut corners or delay; a new filter costs just a few dozen yuan, whereas neglecting it could lead to engine repairs starting from thousands. Make it a habit to regularly check your oil condition to keep your vehicle running healthily.

[SanMatthew]

When I first started learning to drive, my filter got wet, and my instructor taught me to replace it immediately. The filter protects the engine. Once water gets in, the impurities in the water contaminate the engine oil, reducing lubrication effectiveness. The car may start making clunking noises or even emit smoke. If you force it to run, the wet filter paper can disintegrate, leading to poor filtration and rapid engine wear. Feeling unsafe, I replaced it with a new one—quick and easy. Beginners are advised not to try drying it themselves; just buy a new filter and install it. Also, be careful not to spray water directly at the engine when washing the car—this helps prevent issues. Safe driving is the top priority.