We just got a 1995 Lexus ES300 with a 3.0 V 6 engine. We had to get a car to make most of our local trips in because the gas mileage in my wife's Tahoe was killing us. My question is that the owners manuel states to change the oil and filter every 12 months or 7500 miles. Can you do this with any oil filter and oil, such as the pureone filter. What does everybody else think?