Porsche coolant...the exciting conclusion!

[demonz]

Originally Posted by MNBoxster

Hi,

No such animal as Universal Coolant, except H²O.

I topped off with Peak Global,

http://www.peakantifreeze.com/peak_global_lifetime.html


They are advertising it as a Universal top off, so are you saying that's not true?

[Boxtaboy]

Speaking of coolant...isn't the system not supposed to need regular top off? I would think that if you're having to top off 1 quart every few months, you've got a leak in the system somewhere, no?

I once had this problem of having to add coolant every few months. Discovered finally that I had a small coolant tank leak. No harm in having the dealer check it out as you're still under warranty on that 987, IMHO.

[thomschoon]

You can also go to VW and buy their Autobahn coolant, just another color but half the price. There are a lot of threads about coolant on the 944/928 boards, Dexcool works fine but I use the VW coolant as I like the color

[MNBoxster]

Originally Posted by demonz

I topped off with Peak Global,

http://www.peakantifreeze.com/peak_global_lifetime.html


They are advertising it as a Universal top off, so are you saying that's not true?

Hi,

No, it's not true. This is an ethylene-glycol based OAT Coolant, and so while it is OK for the Porsche (But only the Global Lifetime and Sierra - no other Peak products are compatible), it is not acceptable for some types of Cooling systems.

Peak makes several products and I don't want to start OK'ing Brands here because someone will invariably use the Peak Blue, or some such, and this is bad for the car.

What you want is a Coolant which is Silicate and Phosphate Free and is either G 12 (G 30 in Europe) or G 34...

Happy Motoring!... Jim'99

[Cloudsurfer]

Just swapped mine out with Zerex Dex-Cool, apparently to no point as the old coolant came out crystal clear so probably didnt need to be done. Oh well, I suppose I feel better knowing its done and done right with a full flush with distilled water and a 60/40 distilled/ coolant mix in it now.

Next project before spring is gearbox lubrication....

Patrick

[MNBoxster]

Originally Posted by bmwm750

... apparently to no point as the old coolant came out crystal clear so probably didnt need to be done...

Patrick

Hi,

Not necessarilty true. Coolant can undergo several chemical changes as it ages, reacts with the various materials used in the Cooling System, etc. Generally, Coolant increases in Acidity as it ages because of this. This fluid now has a greater ability to attack the Cooling System components. For this reason alone (though there are others), it's worthwhile to change the Coolant every 5yrs. or 150k mi. Hope this helps...

Happy Motoring!... Jim'99