Agree with dkl. Don't confuse condensate with sludge.

If you want to clean out the engine oil passages, do a series of hot oil changes in quick succession. Drive it enough to get it hot. And don't expect that this, or any cleaner, will clean out the CCV, as that system is not in the oil circulation path, just the vent path.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue