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Old 10-21-2009, 01:05 AM   #1
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Join Date: Jul 2007
Location: Boston MA
Posts: 1,590
My Ride: has a D-Pillar
Specifics about Seafoam DIY

So I've read a bunch of DIYs with Seafoam, and I am resolved to do it...just have a few questions.

Should I remove my pre-cat O2 sensors before hand? Have a lot of people had to replace 02 sensors after Seafoam?

I plan on replacing my oil and plugs after doing Seafoam, but I am wondering how many miles is correct. I am doing seafoam as part of a "tune-up" for a 1200 ride trip to NYC. Is that too long to wait for the oil chance and plugs? My current plugs are only at 10k miles.


FOR SALE: Eurospec imported 2003 330XI 6MT
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