Why am I using so much oil?

2002 FORD TAURUS
177,000 MILES
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GARYNOE1
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The vehicle ('02 Taurus SES)trouble light does NOT come on, there is no white smoke (or black) from exhaust pipe at start-up (or any other time) and there is no oil spots when and where I park. Yet I find myself replacing oil (5-20) part synthetic, approx. 1 qt per month. What gives?
Nov 2, 2011 at 11:23 PM
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RASMATAZ
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If you're not leaking anywhere-could be burning in the cylinders or going thru the PCV system.
Nov 2, 2011 at 11:41 PM
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GARYNOE1
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Hi, Rasmataz; if the oil was burning in the cylinders, would that not indicate a seal leak, and would there not be clues coming out the tailpipe, as in smoke?
Nov 3, 2011 at 5:39 PM
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RASMATAZ
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Yup! blue smoke-Unable to see it stationary/moving-Get an engine compression check this will tell you where its leaking to include a cylinder leakage test
Nov 3, 2011 at 6:41 PM