Greetings all; My wife's best friend has a 2000 Sonata and really doesn't get that great of mileage. She (I) maintains it well and it just clikced over 100k miles. Were these years known for poor mileage? She claims 18 city/highway combined with the 2.7l V6. 90% of her driving is in town. I suspect the combination of gearing and the fact that it rarely sees the highway contribributes to her mileage dilemma. My 2008 gets 22-23 combined, 27 highway while my Pastor at church gets 30 out of his! We both are CC users. TIA, Steve