986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Non-Porsche anti freeze/coolant

Doug427 · 03-20-2018, 03:20 PM

I unfortunately have oil in the coolant, likely (I hope) due to a faulty oil cooler or o-ring. It's be flushed super thoroughly, so no real chance of contamination with the new coolant. It just irks me the ridiculous price that Porsche charges for simple coolant. Simple DexCool, if it works, is inexpensive and available. I really can't see any reason it won't be just fine. I also noticed that in his water pump replacement how-to (or maybe it was his cooling system flush how-to writeup), Pedro, who has forgotten more about Porsche's than I will likely ever know, used plain 'ol green Prestone. Thanks to all of you for the answers.

03-20-2018, 03:20 PM	#10
Doug427 Registered User Join Date: Feb 2018 Location: Houston, TX Posts: 163	I unfortunately have oil in the coolant, likely (I hope) due to a faulty oil cooler or o-ring. It's be flushed super thoroughly, so no real chance of contamination with the new coolant. It just irks me the ridiculous price that Porsche charges for simple coolant. Simple DexCool, if it works, is inexpensive and available. I really can't see any reason it won't be just fine. I also noticed that in his water pump replacement how-to (or maybe it was his cooling system flush how-to writeup), Pedro, who has forgotten more about Porsche's than I will likely ever know, used plain 'ol green Prestone. Thanks to all of you for the answers. Last edited by Doug427; 03-20-2018 at 03:25 PM.