Dex-cool

Post by **HenryJ** » Sun Oct 13, 2002 8:03 am

How many have made the switch from pink to green?

I did it

a2b · Post by **a2b** » Sun Oct 13, 2002 9:25 am

not me

Post by **HenryJ** » Sun Oct 13, 2002 10:32 am

It is quite a debate (pink or green)

I personally think either is ok, when properly maintained, and changed every 2-3 yrs or 40k.

I had problems with the Dex in my wife's Cavalier convertable after a stuck theromstat over heated it. It turned to the consistency of thick brown muddy river water.

Here is some information I ran across.

I believe that the auto manufacturers had a good idea trying to build a vehicle that will go 5yrs or 100k with out any service work, but IMO they still need to keep trying ...the Dex. didn't make it.

Steven · Post by **Steven** » Sun Oct 13, 2002 12:07 pm

I did the switch when I got the larger Radiator installed. When taking with the radiator shop, the recommended changing to the Green stuff too. They told me they're getting quite a-few (sent from the local GM dealer) for flushing and switch from the Dex-cool crap. He told me that the Dex Cool is clogging alot of the cars/trucks. Also they told me that if the fluid over heats just once, it changes the properties of it's cooling ability.

That was enough for me to switch.

a2b · Post by **a2b** » Sun Oct 13, 2002 2:56 pm

yep, once it over heats your screwed. i will change once i change my radiatro

a2b · Post by **a2b** » Sat Oct 19, 2002 11:04 pm

so if you do go to green, what is your mixture going to be? in my old chevy, i ran 100% green

i used to over hear all the time

Post by **HenryJ** » Sun Oct 20, 2002 6:17 am

50/50 is the best compromise.

a2b · Post by **a2b** » Thu Jan 16, 2003 1:28 am

so i am at 47k miles. should i change radiator fluids?

Post by **HenryJ** » Thu Jan 16, 2003 6:18 am

I would. I had planned on doing it around 3yrs. or 50k.

You can stay with the Dexcool if you would like, and if it has served you well. It does have additional corrosion inhibitors.

If you decide to change to the "Green" be sure that you flush it all out. Take some extra time to flush it several times.

When you refill use distilled (not tap) water and antifreeze.

Jim · Post by **Jim** » Thu Jan 16, 2003 6:42 am

On the forum for my wife's German car they say prestone has phosphates in it & you need to find a phosphate free coolant like the VW approved coolant. What does anyone know about phosphates & our system? They also say mixing two types can cause a jello effect.

AZS10Crew · Post by **AZS10Crew** » Thu Jan 16, 2003 9:51 am

I don't know about the phosphates, but definitely don't mix the Dex-Cool with conventional coolant. It will cause some real problems...jello effect like you said. If you change, definitely flush several times like HenryJ said.

a2b · Post by **a2b** » Thu Jan 16, 2003 2:57 pm

DO NOT EVER MIX PINK AND GREEN!!!

quickbiker · Post by **quickbiker** » Sun Jan 19, 2003 9:05 pm

Pink all the way!

Azreloader · Post by **Azreloader** » Tue Jan 28, 2003 7:21 pm

If you leave the pink stuff in too long, it will eat the gaskets. Had to replace every single coolant gasket in my 96 Silverado($1500)

I will probably change mine after it's second Arizona Summer this year.

Just reached 9000 trouble free miles and absolutely love my Sonoma Crew

Post by **HenryJ** » Tue Jan 28, 2003 9:50 pm

azreloader wrote:If you leave the pink stuff in too long, it will eat the gaskets. Had to replace every single coolant gasket in my 96 Silverado($1500)

I know what you mean!

We have five Chevys and two Dodges that ran the Dex-cool in our fleet. I have only two left running the pink stuff, and one of those has to be flushed ASAP. The summer heat and 3yrs old Dex don't mix well. It looks like brownish muck.

seapahn · Post by **seapahn** » Mon Feb 03, 2003 3:26 pm

I'm going to stick with pink until 75K miles ... that's when my extended warranty runs out ... I don' t want to give them ANY excuse not to fix something

I have almost 30K miles and am going to have it completely flushed ... especially since we get plenty of 100+ days in LA. I actually had mine overheat once driving to Vegas when it was new. It was 107 degrees and I was stuck in traffic (construction) and had a passenger that "needed" to have the AC on

The temp slowly went up until the red light came on and I turned the AC off and let it cool down.

Post by **HenryJ** » Mon Feb 03, 2003 6:20 pm

seapahn wrote:The temp slowly went up until the red light came on and I turned the AC off and let it cool down.

You might want to consider the bigger radiator.

I haven't had the fluctuations in temp since I put mine in.

Here are some of the threads:

From the old forum-

Bigger Radiator

Group Purchase for Radiators in 2001's

Water wetter (worth a look too.)

From the new forum-

Radiator

Conman · Post by **Conman** » Mon Feb 03, 2003 6:29 pm

HenryJ wrote:
seapahn wrote:The temp slowly went up until the red light came on and I turned the AC off and let it cool down.
You might want to consider the bigger radiator.

I haven't had the fluctuations in temp since I put mine in.

Here are some of the threads:

From the old forum-

Bigger Radiator

Group Purchase for Radiators in 2001's

Water wetter (worth a look too.)

From the new forum-

Radiator

That was a GP buy? I def. don't need cooler temps now but keep me in mind if the GP does happen again.

Con

Post by **HenryJ** » Mon Feb 03, 2003 7:15 pm

Conman wrote:That was a GP buy?

If I recall correctly. it started out as one but Steven found a better price locally. So I'm the only one who got one here.

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