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Message: <blockquote data-quote="Lee36328" data-source="post: 457515" data-attributes="member: 113">With white smoke in the exhaust, it is usually a sign of the coolant leaking into the engine.  This may happen because the gasket, which seals the top and bottom of the engine together, is about to go, allowing the coolant from the water jacket surrounding the engine to leak into the combustion chamber.  When that happens, the combustion is compromised by the water in the oil/air mix, hence possibly explaining the sputtering.The crack in the gasket may be still quite minor, and when the engine gets hot and expands, it gets sealed again.  This may explain why it only happens when it is cold, and goes away after the engine warms up.It would also be consistent with your complaint that the engine is consuming engine oil.  Engine oil may also leak if the gasket is faulty.I would advise having your engine checked to see whether it is due for an overhaul.  Meanwhile, avoid long journeys if you can.</blockquote>