I have 3200+miles on mine and it still eats alot of gas. I do regular in the winter and super in the summer. I will admit, I have a heavy foot :whistles:. now that I am using super, the car accelerates better. My father-in-law's 2005 RX330 eats aot of gas also. This is his third RX3xx, and of the three the 2005 eats alot more gas. I got to drive my mother-in-laws 2001 ES300( 17,000miles) for a week in city driving. It got great mileage and NO LAG!! Tap the gas pedal and the car moves. No lag at any speed. I loved it! The car felt lighter, more responsive then my car. Which do i perfer?? The 2005 ES330 ofcourse. It is much smoother and quiter, but i would love the acceleration of the '01.