Why is blue smoke coming from my exhaust when I accelerate?

Blue smoke that puffs out specifically when you get on the throttle is classic worn-piston-rings or worn-cylinder-walls behavior — under high engine vacuum and pressure, oil gets pulled past the rings and burned. On turbocharged cars, blue smoke under boost can also mean a failing turbo seal letting oil into the intake. Either way, expect noticeable oil consumption and plan for engine work.

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