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Old 01-17-2013, 08:11 AM
RockChips RockChips is offline
Officially Welcomed to the 'Fest
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Join Date: Jun 2012
Posts: 627
Mein Auto: 2008 X5 3.0si
Well you should be using PEA detergents regularly as BMW, Mercedes, Porsche manuals recommend.

I assume you use Techron, Redline SL1, or Regane regularly?

You will have better luck changing the fuel filter.
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