Hi guys...just went in to look at my profile and noticed that I haven't posted anything in over 3 years (the rumors of my death have been greatly exaggerated...)! Fear not, I've been following the forum and "lurking" the whole time. I just purchased a 2003 Camry with the 2.4l for my nephew (his first car...couldn't find a Maserati in our price range...). The car was owned by an older gentleman who passed last year and inherited by his only relative (niece). The car has 79,000 miles. The car is in very good condition except he was a smoker (odor in the car...will need to hit it with an ozone generator). The car runs and drives beautifully. My only problem with is it has NO maintenance receipts and the niece was clueless about it's maintenance history. I've changed the oil and installed some QSGB 5W30 for now while I decide how I want to proceed...will be replacing the coolant and transmission fluid shortly. The oil was dirty and there is some noticeable varnish on the oil filler baffle and dipstick but it was full when I changed it. The air filter looks like it was recently replaced so I'm assuming that it has had some maintenance over time...just not sure how much or what was used. I have a can of Kreen that I've never used (not sure why I bought it and it's still in the box...about 2 years old or so) and was thinking about giving this car a Kreen treatment. I see that there isn't much discussion about Kreen these days? My other option is to leave the Quaker State in there for awhile and see if it consumes any oil. I'm just checking to see what the consensus is these days regarding use of Kreen in a car with an unknown service history. It's great to be back...thanks in advance...