Maximum oil consumption is 1 quart every 1,000 miles.
Perform a compression test to determine condition of rings, if one or more cylinders is 20% less, then could be ring problem, if compression is good, then valve guides or seals.
Also check for any oil leaks, and I agree with mechanics, it is highly unusual for an 01 to require an overhaul.
Was engine overheated at some point in time?
First thing to check for is leaks, especially since there is no blue smoke coming out exhaust.
Second have a compression and leak-down test performed to check condition of rings and valve guides.
One quart every 1,000 miles is considered upper limit
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Saturday, October 24th, 2009 AT 9:42 AM