Grrrrrr, 18mpg on my fill up today.
I really don't get it, I drive sooooo easily, rarely get on more than half throttle, and drive about 70% highway 60-65mph.
I am actually calculating exactly how much thruway driving I do this week, but regardless, 18mpg is horrible.
http://www.edmunds.com/used/2003/oldsmobil.....6.Oldsmobile*
There it says mpg estimates are 20 city 29 highway. I should reasonably be getting 22mpg (even higher) considering how much thruway I use. Last time he checked (over summer) my friends 2000 5.3L Chevy pickup got 17mpg.
EDIT---
I bought this car 2 weeks ago at the dealer, the first time I got about 20mpg, next 19, now 18. Something has got to be up... Fuel filter, spark plugs, gas leak?