dexcool? - PeachParts Mercedes-Benz Forum

mzsmbs · #1 04-06-2006, 01:26 AM

is this stuff good or bad? i am hearing mixed stories on this product and was wondering what you guys know or think.

thank you.

alfredgee · #2 04-06-2006, 08:21 PM

I would not recommend Dexcool for older cars because there is no benefit. The longer life of Dexcool is not taken advantage of because you will never be able to rid your system of 100% of the green stuff to make Dexcool 100% effective. I also know for a fact that in some vehicles, it tends to gel in the heater core for some reason thus plugging it and causing headaches.

Stick with the green stuff and regular changes.

Cheers!

Two560Two · #3 04-07-2006, 12:30 AM

OMG! Dexcool is NO GOOD for our MB cars. Just use Zerex or something formulated for European cars with Aluminum Radiators and flush yearly or every 20k

mzsmbs · #4 04-07-2006, 01:26 AM

actually i was going to use it on a japanese vehicle which does have aluminum heads and i am not sure about the rad.

why is it bad?

Tomguy · #5 04-07-2006, 02:42 PM

Newer MBs might have aluminum rads, but most of the vintage ones have copper/brass ones. Dexcool is made more for aluminum rad systems than these.

My experiences with it are mixed. When I drained my system and flushed it out, I had a LOT of red stuff around my block. I know some was rust, but I also think quite a lot was from the dexcool. I've switched to yellow Prestone. I'll give you the verdict on that in a while. The generic green wal*mart brand I wouldnt use as a last effort - I'd go straight water before touching that crap. Corrosion protection with it is nonexistant.

ozoneblue · #6 04-09-2006, 10:43 AM

GM recently had a little known recall ! advising to flush it out of the systems and replace with Zerex .Due to hose & gasket material deteration .It was originly designed for safty being non toxic .