My girlfriend has bought a 97 Toyota Camry a year ago with 120,000 miles on it and I noticed it blows blue smoke upon cold start-up. It does not burn oil; almost 3,600 on the oil and it is at the full mark. She usually has wal-mart change the oil at ~3,000 mile intervals with SuperTech & a orange can Fram. No more though! Not necessarily related of course, but I put a can of Seafoam in a full tank yesterday, will this coming weekend I will put in Valvoline & a Wix filter, change the OLD PCV & maybe the plugs. Any ideas on the blue smoke on cold start-up? Anything else I should keep an eye on?