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Yellow powery substance in exhaust pipe

jacko16

By jacko16
in Aurion / TRD Aurion Club

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jacko16

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I have a 2007 model Toyota Aurion Peseara and recently, I have noticed some yellow powder, mostly in one of the exhaust pipe. Pics attached. Just recently I had the car serviced form Toyota, and they have changed the air cleaner, oil and oil filter. But 2 months before, I have put some genuine Toyota injector cleanet into the fuel tank. I allways use Mobil 95 octane unleaded petrol. Never used e-10 fuel. post-7564-127146157501_thumb.jpgpost-7564-127146162525_thumb.jpg

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DJKOR Grand Master

DJKOR

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In my opinion I don't think that is anything you need to worry about. My guess would be that you had previously had water in your exhaust pipe etc (washing the car or rain can do this), and then before in the process of evaporation, the water will collect what is in the exhaust fumes and then settle them on the base of the exhaust pipe.

Just what I would imagine it as.

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