Quote:
Originally Posted by Lil bastard
That is an 'Old Wives' Tale! There is no greater propensity for a Boxer engine to smoke on startup than any other IC motor.
As proof, all you need to do is look at Subaru's boxer-4 and flat-6 engines, they do not smoke.
If a horizontally opposed motor smokes on startup, there's an issue with rings, valves or guides, or in the case of the Boxster, the AOS.

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Subaru engines do puff on startup every once in a while too. Now the hydrolock statement, that's unrealistic.