87 Sunsport
07-17-2003, 07:24 AM
I've been faithfully adding lead substitute to my 87 Sunsport because both the manual and the PCM manual says I should.
I just read a thread elsewhere that says it's useless in any engine build before 74, something about hard vs soft valve seats and the fact that the substitute doesnt do anything anyway. Any one know the truth on this?
I just read a thread elsewhere that says it's useless in any engine build before 74, something about hard vs soft valve seats and the fact that the substitute doesnt do anything anyway. Any one know the truth on this?