STP date code ?

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Jan 21, 2014
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AZ
earlier today i cut open a stp filter for the old chevy motors. i was really sad when i saw sludge in it. i think my dad put 2050 in it the last change but i dont remember... anyways. is there a way to decifer the date number on the bottom ? i can honestly say the oil/filter in this truck could be ~10 years old.....
 

leroyd92

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Jan 21, 2014
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596
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AZ
probably should have gotten the number before asking.... its kinda obvious. 090303p1
 
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Originally Posted By: ZeeOSix
Mar 3, 2009 would be my guess.
Or 09/03/2003? Don't know if Champion Labs made the STP filters in 2003, but I'd call them to check the date code. Ten years without an OC or filter change makes for sludge. Good luck.
 
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