How does the bypass valve work on an oil filter?
The bypass, or pressure relief, valve is the filtration gatekeeper. High oil pressure opens the valve, so oil bypasses the filter during cold startups. The valve closes once the oil pressure normalizes; only then does oil flow through the filter.
Why do you need a primary oil filter?
Since it is essential for these oil filters to work efficiently in order to keep the engine lubricated, they have lower flow restrictions. In colder temperatures, motor oil thickens, and a restrictive oil filter can result in damage to the engine. Thus, primary oil filters allow smaller particles of contaminants to pass through them.
What are the parts of an oil filter?
Typically, these oil filters have two sections, a housing chamber and membrane. When the media gets clogged, you only need to replace it while the housing chamber remains usable. The base gasket is an important component of a spinner filter. It works to prevent motor oil from leaking, but is not very durable.
How many replacement oil filters are there for Purolator l25288?
There are 240 replacement oil filters for Purolator L25288. The cross references are for general reference only, please check for correct specifications and measurements for your application. Purolator L25288 replacement filters AC-Delco PF58 AC-Delco PF59 AC-Delco PF61
Which is Purolator oil filter meets Factory performance?
Purolator L25288 Purolator Premium Engine Protection Oil Filter – Purolator oil filters are engineered to meet original factory performance for your vehicle.
What are the symptoms of bad oil filter?
New filters ensure filtering efficiency to keep your oil clean and your engine properly lubricated. Bad oil filter symptoms can include dirty exhaust, low oil pressure from oil leaking, or metallic sounds and sputtering from the engine. These symptoms only get worse as the oil filter gets older.
How does a full flow oil filter work?
Full flow filters contain primary media which stops particles as small as 25 microns, and lower oil flow filters also include a secondary media capable of stopping particles between 5-10 microns. Oil enters through the series of small holes just inside the sealing gasket.