I have had this happen to me twice---both times with a Mann filter. The first time I thought it was a fluke, but the second time confirmed it for me. I prefer the Hengst oil filters. However, I just did an oil change last night, and in a pinch, had to install a Purolator (made in India). I'll be interested to see if I get one or two pieces in 5,000miles.

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1984 300TD Wagon--Astral Silver--Retired
1983 300TD Wagon--Dark Blue--Retired