Ford Mustang Forum - View Single Post - Anybody here that have done a Seafoam treatment on their 4.6L 3V stang?
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post #5 of (permalink) Old 03-20-2010
40th GT
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Joined: Mar 2008
Location: Lawrenceville, GA
Posts: 517
Yes, I've ran it through the PCV at about 7k miles and that was a waste because it didn't smoke much. I'm guessing there wasn't much to clean. I also ran it through the fuel system at the time, just for kicks. I never have and never will put it in the oil.

2007 Mustang GT/CS coupe
Procharged--cammed--Lito tuned--coilover suspension
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