After reading many posts on Purolator oil filters that tear, I decided to buy an oil filter cutter and check my favorite oil filter. I had this one in the oil drain pan checking to see how long the anti drain back valve would hold oil. So it was a good one to cut open.
Motorcraft FL820S Date code: 904121217
Dome end tear.
Thread end tear.
Motorcraft has changed the number of inlet holes leading to the bypass valve 4 were used in this date code.
This filter is the one that caused me to start cutting all my filters to see what is going on. I know this is a popular filter but, it did tear on a 2004 Ford Ranger 4.0L V6 using Mobile M1 5W30 oil.
Motorcraft FL820S Date code: 904121217
Dome end tear.
Thread end tear.
Motorcraft has changed the number of inlet holes leading to the bypass valve 4 were used in this date code.
This filter is the one that caused me to start cutting all my filters to see what is going on. I know this is a popular filter but, it did tear on a 2004 Ford Ranger 4.0L V6 using Mobile M1 5W30 oil.
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