I have had my 2000 coupe for 5 months now and noticed in the garage a small puddle of coolant and its GREEN.
Looking at what documents that I have on the car, 4 years ago a auto place repaired/replaced the radiator and added coolant. The car itself has only gone 2500 miles in those 4 years, but it has the GREEN coolant.
It looks like the leak is either from the coolant overflow tank or one of the hoses that connects to it.
My question for you guys, should I change out the coolant to dexcool or keep the green stuff in it and if I need to change it out, what is the best way to do it?
I can purchased whatever parts I need to replace, but I am concerned about this green coolant that I keep reading about on this forum.
Thanks in advance for your input on this.

Thanks 8Vette7 for your advise. I'm concerned also that when the previous auto changed over to green, if they got all of the dexcool out at that time. I have read many posts stating that mixing the two together can sludge up the cooling system.
So if I go back to dexcool, I need to make sure that I get all of the green out of it. I will purchase a new overflow tank and try that first before I buy any hoses that I might need to get if they are cracked.
Thanks again for your help

Thanks thisMSGgood4me

You might want to consider Peak Global after you flush the green stuff. It is a modern, new and improved version of Dexcool and it's amber.

http://www.peakauto.com/products/ant...full-strength/

I would go back to Dex-Cool using the procedure 8VETTE7 described.

A stupid question, but in order to flush the system out as much as I can, do I need to turn the heater on when the motor is running?
I have never flushed coolant out before.
Thanks again for the replys.

Don't think they is anyway to turn off heater. it is on all the time no valve like other cars

Thanks sirdano

How do you guys get to the radiator drain ****? I have a set of Race Ramps and jack stands with a floor jack.
What is the easiest and best way to remove as much green coolant as possible.
I ordered a new coolant tank and tank cap and it arrived today.

I understand trapped air, but how do you "burp" the air out?

Drain, fill with fresh water, fully warm the engine, cool and drain.

REPEAT until you have clean fresh water on the drain cycle. Mine took FOUR drain and fills for clean water. The last couple drain and fill cycles, I fill with distilled water and do two more cycles to have all distilled water in the block.

Then add what ever coolant you desire. I recommend the DEXCOOL but that NEW PEAK Coolant looks good too..

PEAK® GLOBAL LIFETIMETM Antifreeze & Coolant features a patented, advanced Organic Acid Technology (OAT) that provides guaranteed LIFETIMETM protection - for as long as you own your vehicle! Patented inhibitors provide maximum protection against damaging rust and corrosion in all automobiles and light trucks worldwide, regardless of make, model, year or original antifreeze color.

Specific benefits include:
•Provides guaranteed LIFETIMETM protection - for as long as you own your vehicle - when a complete cooling system flush and fill is performed and specified maintenance followed
•Formulated for use in all American, Asian and European automobiles
•Features a patented non 2-EH formula that is Phosphate-free and Silicate-free
•Can be used to top-off any color of automotive antifreeze including green, yellow, orange, fuschsia, blue and red
•Amber color will not change the current antifreeze color when used for topping off
•Meets ASTM D-3306 and ASTM D-4340


I HIGHLITED the IMPORTANT things in the description above that the OAT coolant you select needs to have!

Thanks 8Vette7 for your input. There was no way that my body could get underneath to the drain **** so I figured I had to raise the front to get to it. But by doing that, I wouldn't be able to get the most coolant out of it.
So I will use the Race Ramps for the front and jack up the rear with the floor jack and install jack stands.
Thanks again for the help.

I have an '03 Z06, purchased new. I've always used the Prestone premixed Dex-Cool; never had a cooling problem. Recently, my reservoir tank cracked and a new one was installed; I used the GM premixed Dex-Cool. To get all of the old coolant out of the system, I have the dealer flush the cooling system...I don't want old coolant mixed in with the fresh stuff.

Bye the way, what do you have against premixed Dex-Cool? Other than being more expensive, it's what should have been available many decades ago instead of people mixing in tap water that has a ton of minerals.

again. . . burp ????

I recently purchased an 04 GTO. It too had the green coolant... Car never sees over 190-200 even in this Texas heat. It's a high miler so changing back to dex cool is not a conern. when I install a built engine I will go back to Dex Cool just because....