2010 2011 BMW 5 Series Forum F10 - View Single Post - Shell now being using instead of Castrol by BMW Service

gatorfast · 07-07-2015, 05:56 PM

What do you mean by "mix synthetic oil technologies in the engine"? There would be absolutely no harm in mixing castrol and shell/pennzoil oils or using one after the other has been drained.

07-07-2015, 05:56 PM	#3
gatorfast Major General 4996 Rep 6,863 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	What do you mean by "mix synthetic oil technologies in the engine"? There would be absolutely no harm in mixing castrol and shell/pennzoil oils or using one after the other has been drained.
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