Driving like a total maniac with total disregard to fuel economy, I've been getting about
330 before it coughs and sputters and quits. ...so about 300. Lately I've been getting less. I'm gonna have to remedy that. (Removing the lead from my foot is not an option.) These guys getting 350 are making me jealous, but perhaps it's a benefit of driving like a wuss.
(Just kidding.)
[edit]
Whoops! I meant 330, not 230 as was previously written.[/edit]