First, understand that 2 quarts in 3K miles is considered acceptable. More than that it becomes a concern. As far as where it is going, if there are no leaks, it is getting burned. You may not see if from the exhaust, but it is happening. The catalytic converter may be burning some of it off making it so you don't see it. With 250K on the engine, I wouldn't be concerned. Just keep an eye on the oil level and it will keep going.
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Tuesday, January 18th, 2011 AT 7:13 PM