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-   -   50/50 (http://986forum.com/forums/boxster-general-discussions/53403-50-50-a.html)

Muzzle of Bees 07-27-2014 04:04 AM

50/50
 
What does it mean when referring to coolant? If I buy the 50/50 mix do I have to add water to the coolant?

Davev 07-27-2014 04:33 AM

Quote:

Originally Posted by Muzzle of Bees (Post 411729)
What does it mean when referring to coolant? If I buy the 50/50 mix do I have to add water to the coolant?

No. It's pre mixed. Just get the approved coolant for P cars.

Muzzle of Bees 07-27-2014 04:41 AM

Quote:

Originally Posted by Davev (Post 411733)
No. It's pre mixed. Just get the approved coolant for P cars.

Just checking. It seems to be more complicated then it has to be with all of the variants in coolant types.
Thanks.

tonycarreon 07-27-2014 03:53 PM

personally i wouldn't just start using the pre-mixed coolant (or any other off the shelf stuff) without doing a flush. too much can go wrong. i know i've got the porsche coolant in there, and that's what i'll keep using.

that said, there are a few people on the forum that have used it without problem.

if you're just a little low, add some distilled water instead of topping up with stuff from the store.

rdass623 07-27-2014 11:49 PM

yes the coolant is diluted with 50% water, but if you look at the prices charged for it, usually 13 -14 a gallon, it seems like it would be much more economical if you paid the 15 a gallon for the full strength stuff and added your own $1 a gallon distilled water. the Porsche cooling systems usually hold around 5 gallons. why not put your money where it makes you happy, in the tank so you can drive more.

jsceash 07-28-2014 06:43 AM

I'm not aware of any premixed coolants that is designed to work in a Porsche. Be extremely careful what you mix in the existing coolant.

LAP1DOUG 07-28-2014 05:08 PM

Personally, I wouldn't mix it 50 / 50 unless I lived in a very cold climate and parked my car outside.

Water is actually a better coolant as far as heat capacity (Cp), so I use only about a 30% mix, which provides a freezing point protection of about +5 F and a boiling point of about 254 F. Adding more antifreeze does not raise the boiling point very much, and really only serves to depress the freeze point.


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