Am I asking for too much?

Just trying to figure out if it is something on my end or if times are just bad right now for selling. Let me know what you think please. I need something with better gas mileage than this. Also, I have not yet updated the ad, but I just found the receipt that shows the the new long block being replaced roughly 40k miles ago. Will this make a difference at all?

Thanks in advance, any help with this would be great.

http://phoenix.craigslist.org/evl/cto/4422826731.html