Seafoam is good when used as a fuel stabilizer,have never used it as a cleaner.I use (four power)manufactured by conklin.Just pour it in a full tank of fuel every 3000 miles.Have used it for over ten years in 6 or 7 vehicles and motorcycle.Haven't had any problems and have not needed to replace any fuel filters.Reguardles,none of these cleaners will clean a carboned EGR valve without pulling the valve and cleaning it.
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