Important to PUSH the Northstar once a week?
When I owned my '95 ETC, the dealer told me to hit it hard once a week. I was reluctant, but did so once every two weeks. They told me it was very important for the Northstar engine. Not only does it clear out carbon - but it does something else..
Does anyone know what this 'something else' is? I trusted my dealer so I did it and had no problem doing it. But, I can understand why one may believe that the dealer just wants you to beat on your car to break it..