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blue smoke comming from tail pipe getting oil in one sparkplug well
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This page might be able to help you out: http://repairpal.com/what-does-the-smoke-from-my-tail-pipe-mean Blue smoke Excess oil in the combustion chamber—generally caused by worn rings or valve guides—can cause blue smoke. Over time, the spark plugs can develop deposits due to excess oil consumption, resulting in a rough running engine.