Mine at this time is the pink stuff ( orig Porsche) but I am thinking to drain/refill. Wanted to know who has experience to tell if the non Porsche engine coolants are fine for the cayenne or not. Was thinking of the pre stone or peak that one can pick up at wally world. Also thinking to add water wetter to help with heat dissipation . The mixture would be distilled water, some coolant and some water wetter. Input will be greatly appreciated.

 

The problem I ran into is that the pink stuff that Porsche is using, nobody else seems to be. After doing my research I found that the most likely risk you run is the new non-P coolant when mixed with whatever P-coolant that is left in the system is likely to gel. Its not a risk I would chance. I know the P-coolant is expensive but you do not need a 50/50 mix here in Austin. It just doesnt get cold enough. I went with Distilled, Water-Wetter and the P-coolant. No regrets here!

 

Cool. I was just wondering since most other threads seem to touch on other coolant but there are no actual people who state they use it.

Did some research on this and thinking of p-coolant (30%), distilled water (70%), and supplement with water wetter, as I came across info about glycol reducing boiling point of water in ratio larger than 30% glycol to 70% distilled water. Agree, down here we do not often get to worry about freezing temp.

Thanks.

 

No free lunch here.

Coolant also provides lubrication and anti corrosion protection to the system.

The less of it you use the less lubrication and corrosion protection you have.

Only use the original coolant with a 50/50 ratio for optimum protection.

 

I would suggest just using Porsche coolant in your Cayenne. I have spoke to the service advisor at the dealer about a possible coolant change in my Cayenne. Figuring that my F-car requires a flush every year, the Cayenne was sitting on 6 year old coolants. He informed me that Porsches are factory filled with "lifetime" coolants and only requires top offs. If you want to do a flush, I suggest using strictly Porsche (just to be safe) as some coolants do not mix well together and could cause the fluids to turn gel like and overheat.

 

I was merely trying to see what the alternatives are. Going to ask dealer, you will only get one type of answer - buy Porsche only, it is the best.
They are not impartial to the matter so one cannot truly trust their answers.
I tested my antifreeze and seems OK. Fluid looks pink but I do not know how long it has been there.
I was hoping to get some input on what others are using, but it looks like the Pfluid is the only thing to use based on current answers. I am just fine with that too, but was hoping for variety vs monopoly.

Thanks for answers though.

 

FWIW - the Porsche fluid is "lifetime" according to Porsche - and barring contamination antifreeze doesn't wear out. It's an inert chemical. It's possible some coolant mixes have some additives to prevent corrosion, but that's only really a problem when the coolant mix is new, if the water used to dillute is is either heavily base or partly acid. Use of distilled water pretty much eliminates that worry.

 

Hey guys! I have a 2005 Porsche Cayenne S the v8 one... the Temperature range is getting me nervous... it moves from the mid (180F) to like half way to 3/4 (200F) is that normal? its never on the mid for long. THANKS

 

Water pumps are a pretty common wear/failure issue on V8 Cayennes. My guess is that your water pump is either leaking, failing or both. I'd have it checked out.

FWIW - I only use Porsche coolant in my Cayenne.