Denny, I know you said your plugs were all a nice tan color but using that much oil should show up SOMEWHERE. Since we are all speculating right now I'll speculate and say its burning the oil. I have seen and have had cars that would burn oil but not smoke....for a while but in the end it showed up.
Didn't you rebuild this engine...including the rings??? If you did perhaps the rings are not seated yet and you need to drive it more, faster....slower, speed up...you know the drill to seat rings! If you did not do a re-ring job then I suspect everything else you did is firing real good and youre still burning it.....and it WILL show up later when other things, like plugs, can't do the job they once did.
This is really interesting and I'm sure you'll keep us posted on what is going on.

EDIT: Denny, have you checked your radiator to see if any oil is in the antifreeze???

Last edited by Achipmunk; 03/30/2008 2:46 AM.

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