Iowa Chapter Director
Join Date: Jul 2002
Location: Ames, Iowa
the slight knock could be bad, I wouldnt expect seafoam to fix a worn out rod bearing, but its worth a try for 5-6 bucks. I think you add 2/3 of the can to a v6, I wouldnt worry about leaving some oil out.
1988 Notch Mustang: - 438W, direct port n2o, t56
2003 SVT Focus: - SCT X3 tuner