How to Identify the Model of an Oil Filter?
3 Answers
The model of an oil filter can usually be found on the filter housing, which typically includes the manufacturer's part number, or you can refer to the vehicle's maintenance manual. Below is additional information about oil filters: 1. During engine operation, contaminants such as dust, carbon deposits oxidized under high temperatures, sludge deposits, and water continuously mix with the lubricating oil. The function of the oil filter is to remove these mechanical impurities and sludge, ensuring the cleanliness of the lubricating oil and extending its service life. An oil filter should possess characteristics such as strong filtration capability, low flow resistance, and a long service life. 2. An oil filter, also known as an oil strainer, can be categorized into full-flow and bypass types. A full-flow filter is connected in series between the oil pump and the main oil gallery, filtering all the lubricating oil entering the main oil gallery. A bypass filter is connected in parallel with the main oil gallery, filtering only a portion of the oil delivered by the pump. Structurally, oil filters can be classified into replaceable, spin-on, and centrifugal types. The filtration materials used in oil filters include filter paper, felt, metal mesh, and non-woven fabric.
Checking the oil filter model is quite simple. I usually look directly at the old filter—the removed part has embossed model numbers on the side or top. If there’s no old part, just flip through the vehicle’s maintenance manual to the filter specifications page, and you’ll definitely find it. You can also go to an auto parts store and provide the car’s model and year, like telling the owner you have a 2018 CR-V with a 2.4L engine. Online searches are even more convenient—just enter your license plate number on a parts website, and matching models will pop up. Never buy based on memory—last time, my neighbor bought the wrong model, causing an oil leak, and cleaning the engine cost nearly a thousand bucks. Regularly changing the filter is crucial—if you go over 10,000 km without replacing it, the filter paper inside will be clogged like a sieve.
Here are some practical methods: First, check the old filter body for laser-engraved model numbers on the metal casing. The vehicle owner's manual maintenance section also lists the original manufacturer's model specifications. If you can't remember, take a photo of the engine compartment nameplate and ask an auto repair shop to help find a matching model. Nowadays, shopping platforms have vehicle compatibility search functions—just input the brand and model year to see recommended models. The key is to distinguish the engine type, as filters for turbocharged and naturally aspirated engines often differ. When shopping online, don't just go for the cheapest option; counterfeit filters with thin filter paper can deform after just 3,000 kilometers. When installing a new filter, hand-tighten it first, then rotate it an additional three-quarters of a turn—avoid using a wrench to overtighten.
