Losing Oil

[wolfgangstbd]

how many miles does your engine have

[e30this]

Leaky valves seals or bad rings??

[juliea_1962]

I'm losing oil (about a quart for maybe 250 miles of driving), and I'm trying to figure out the source of my problem.

- The car isn't leaking when it's not running. I've been carefully looking under the car, and there are no signs of leaks.
- I get blue smoke when I'm accelerating very hard. Otherwise, I don't see it.

Any ideas on what might be causing me to burn oil this way? Also, is it possible that I may have a leak that only shows up when the car is running?

Any suggestions appreciated :)