[Shotimes] Oil Usage

[Beisler Jonathon]

The past few months, my SHO has been burning oil excessively.  Since I have
owned the car, it has usually ended up a quart low after 3000 miles if I
didn't check it between oil changes.  A few months ago, I was going up a steep
on ramp at fun speeds and the Check Oil light came on.  I freaked at first
because I was thinking of "that other oil light."  Anyway, I pulled off,
checked the oil and according to the dipstick was only about a quart low.  But
this was the first time the light came on.  Yesterday it came on and I was
almost two quarts low.  So my oil consumption has doubled.  I have tried all
the "old car" dino oils and none of them really slow the oil loss.  So, what
are my options?  It doesn't have any leaks, unless the oil is evaporating and
it also doesn't blow any oil smoke.  Does anyone think that a synthetic might
help?  My first car burned a quart a week, so I'm not too concerned, but back
then that car was a beater, I'd like to keep this SHO on the road.
Thanks,
JB