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will changing the pcv valve remove the varnish?

i didnt know about this site and followed the directions on the bottle. 1st Clean - 1500 miles 1st Rinse - 2000 miles 2nd Clean - 750 miles 2nd Rinse - 2000 miles I've been reading that the 2nd clean should be the same 1500 miles.... should i do the full blown 3rd treatment then?

would doing a 3rd Auto-rx treatment be harmful to the engine and/or seals? I have a 3rd bottle and I'm not sure if I should use it for maintenance doses or for a full blown 3rd treatment to get rid of the varnish and to make sure my engine is truely clean. Any suggestions on what I should do?

I have a Honda Civic with a ZC engine. It is a DOHC engine - 1.6 liters. I just finished a double treatment of Auto-RX. I looked through the oil cap and noticed that it started to remove some of the varnish. However, there is still alot of varnish left. There are little areas of clean spots. I...