one of my good friends, his gf has a 1995 toyota camry, rough shape, with about 185k miles. She mentioned the other day, that in about a year or so, shell be getting a new car, and that shell give me the camry. needless to say i was shocked. It has the 3.0 V6, its in rough shape the body but the engine runs excellent. The only problem it has is something it thought you guys can help me out with. It loses a good bit of oil, probably a quart every 4k miles. When i get it, ill chnage the PCV valve, its probably never been changed. It seeps a tiny bit around the valve covers, so ill change the gaskets. If it is burning, which i dont think it is, im thinking of using either some 5W40 or 10W40. should this help with the connsumption?