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Lux3m35i · 03-08-2013, 09:02 AM

Does it really make a difference cleaning the valves? Does the engine run smoother? Do you feel it?

Or is it for having a clear conscience?

03-08-2013, 09:02 AM	#8
Lux3m35i Private First Class 13 Rep 116 Posts Drives: E92 335i Coupe Join Date: Jun 2012 Location: Luxemburg iTrader: (0)	Does it really make a difference cleaning the valves? Does the engine run smoother? Do you feel it? Or is it for having a clear conscience?
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