A couple buddies and I were discussing about the type of radiator fluids used in different types of vehicles over the weekend ...
We all had seemed to remember that aluminium radiators used pink fluid and steel radiators use green fluid... I found green fluid in my car even though i had an aluminium radiator and so did my friend... (both evo's)
Why would mitsu put the wrong fluid in my radiator...could it be that the 4G63 engine block is still made out of cast or what ? is there a special blend needed...?

The majority of the newer engines these days are made of aluminium aswell as the radiators so I would imagine that they need pink fluid and come to think of it my 06 pontiac GTO has pink fluid and not green...

Is there a special mix for these cases or are we all just throwing in whatever we think is good and compramising the future of the cooling system...

Some input would be great...

 

Since you're in Dubai, just drain the coolant and fill it up with distill water and couple of water wetter and be happy. As for the green/pink coolant, I don't think it's matter.

 

 

"A 50/50 mixture of water and ethylene glycol antifreeze in the cooling system will boil at 225 degrees if the cap is open. But as long as the system is sealed and holds pressure, a radiator cap rated at 15 psi will increase the boiling temperature of a 50/50 coolant blend up to 265 degrees. If the concentration of antifreeze to water is upped to 70/30 (the maximum recommended), the boiling temperature under 15 psi of pressure goes up to 276 degrees.

So does this mean a cooling system with a maximum concentration of antifreeze in the coolant (70 percent) can run as hot as 276 degrees without boiling over? Theoretically yes - but realistically no. The clearances in most of today’s engines are much, much closer than those in engines built in the 1970s and early 1980s. Piston-to-cylinder clearances are much tighter to reduce blowby for lower emissions. Valve stem-to-guide clearances also are closer to reduce oil consumption and emissions, too. Plus, many engines today have aluminum heads with overhead cams. Such engines don’t handle higher than normal temperatures well, and are very vulnerable to heat damage if the engine gets too hot."

Draining the coolant is out of question and having to decide if wether or not i want to save my block or radiator is aslo out of question, I'm searching for the best of both worlds coolant.

 

Color has nothing to do with chemical make up. Thats just a dye they use. Toyota has never had a car that has ever had green in it. They used red. But Toyotas standard red is the same chemically as all others green are. You can mix and they turn a poop brown color but is not harmful to the system at all. All Evos have a green in them. Its factory. Leave it alone unless you think someone else before you changed.

 

huh? , you do know there more then just two colors right.....and do you even know why different fluids? its more then just aluminium...its also the seal, pump, and block

what kinda block do the evo have again?

 

First question -- why would you trust what you and your buddies "seem to remember" over what Mitsubishi engineers have done?? It is good to ask when in doubt. Here are the answers you seek:

Use the regular green stuff for the EVO.

Mostly GM/Chevy products use the pink stuff.

Do not use the pink stuff in the EVO.

Unless you have someone retune your ECU to take into account lower coolant temps, do not run distilled water and WaterWetter as mentioned above. If coolant temp is lower than Mitsubishi designed your car will not run off the proper part of the ECU map.

EVOlutionary

 

^ you the man

 

Similar question...My car is a little low in the overflow tank. I went to the dealer and they wanted to charge me $20 for a bottle. What other "equivalent" stuff can I put in there? Thanks.

 

One more thing to add -- what the gentleman said about using pure water and Water Wetter would be true in most cases.

Pure water cools better than 50:50 water/antifreeze mix. Water plus WaterWetter (made by Redline) cools even better than pure water alone. You shouldn't need to worry about boilover because this will cool much better than the stock mixture. The reason you don't want to do this in an EVO running the stock ECU is as I said above. Not really because of the reduced boiling point.

 

o wait... so youre not supposed to use yellow gatorade?

 

WTF? ^^^ dont listen to this guy.

 

The things to remember are (1) duplicate the factory type of antifreeze when you need to refill, and (2) don't mix different kinds of antifreeze, as they will gell in the motor and are a real pain to get flushed out.

 

when i asked, i was told by a mitsu tech at my stealership that they just use the your everyday normal GREEN stuff... nothin special.

 

I know im bringing up an old subject, but i was discussing this with someone the other day and just thought i would chime in. There is a difference between the stuff that GM uses "Dex-Cool" and the toyota pink and other green stuff. You should never run dex-cool. Dexcool (orange) is very prone to contamination, once contaminated it will turn to sludge (kinda like pudding). This is the very reason there is a huge class action lawsuit against GM.