Difference between red and gold engine coolant
A (very) rough color-code guide:
Green For American cars
Green Dark, some Japanese cars
Orange Dex-Cool organic-acid technology (OAT)
Yellow some DaimlerChrysler vehicles, some Fords OAT and silicates.
Gold DaimlerChrysler vehicles
Red Toyota with OAT and phosphates but not silicates
Pink Volkswagen, Audi with OAT and silicates
Green, Yellow or Blue for European cars
Here's 2 of many threads where this issue has already been discussed. Plenty more can be found with a search.
https://www.clublexus.com/forums/sho...d.php?t=115136
https://www.clublexus.com/forums/maintenance/75449-coolant-type.html
A (very) rough color-code guide:
Green For American cars
Green Dark, some Japanese cars
Orange Dex-Cool organic-acid technology (OAT)
Yellow some DaimlerChrysler vehicles, some Fords OAT and silicates.
Gold DaimlerChrysler vehicles
Red Toyota with OAT and phosphates but not silicates
Pink Volkswagen, Audi with OAT and silicates
Green, Yellow or Blue for European cars
Here's 2 of many threads where this issue has already been discussed. Plenty more can be found with a search.
https://www.clublexus.com/forums/sho...d.php?t=115136
https://www.clublexus.com/forums/showthread.php?t=75449
"Well, there's a reason why Toyota recommends their own coolant....and
it's not just money or profit-motivated. The red Toyota coolant that
comes in that big black jug....first of all, it cannot be mixed with any
other coolant without the potential for doing damage ...especially the
greenish-yellow stuff....unless you COMPETELY flush out all of previous
coolant. Second, the Toyota coolant is especially formulated for the
metal, rubber, and plastic alloys used in Toyota / Lexus radiators,
hoses, water pumps, heater cores, and engine blocks. It is designed with
the proper PH (acid / base) balance so it will not damage these parts
with normal change intervals.
I'm not saying that other coolants can't be safely used in some cases,
but my philosophy is: why take a chance?"
If you want to see what happens when Toyota owners use an auto parts store antifreeze go visit your local auto wrecking yards. A large percentage of those cars got there due to engine overheating and internal corrosion problems and busted head gaskets. All preventable problems if owners would just be willing to follow the car care advice of the Toyota engineers .
My LS has seen Toyota red ever since it was first sold, and it's happy with it.
I took the top radiator hose off a 15 year old Toyota pickup engine the other day that had run Prestone Green most of its life and the pitting and erosion of the aluminum coolant pipe was
rather shocking: http://www.saber.net/~monarch/coolantcorr.jpg
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"Well, there's a reason why Toyota recommends their own coolant....and
it's not just money or profit-motivated. The red Toyota coolant that
comes in that big black jug....first of all, it cannot be mixed with any
other coolant without the potential for doing damage ...especially the
greenish-yellow stuff....unless you COMPETELY flush out all of previous
coolant. Second, the Toyota coolant is especially formulated for the
metal, rubber, and plastic alloys used in Toyota / Lexus radiators,
hoses, water pumps, heater cores, and engine blocks. It is designed with
the proper PH (acid / base) balance so it will not damage these parts
with normal change intervals.
I'm not saying that other coolants can't be safely used in some cases,
but my philosophy is: why take a chance?"
If you want to see what happens when Toyota owners use an auto parts store antifreeze go visit your local auto wrecking yards. A large percentage of those cars got there due to engine overheating and internal corrosion problems and busted head gaskets. All preventable problems if owners would just be willing to follow the car care advice of the Toyota engineers .
Celebrating Lexus & Toyota from Around the Globe
By the way, anyone know if the red coolant comes in a pre-mixed, "ready to use" form as well?
By the way, anyone know if the red coolant comes in a pre-mixed, "ready to use" form as well?
Kreativ-for my ES (1998) per Lexus you can use any EG coolant. I switched from Toyota coolant (EG with a Red dye per Lexus) to a green EG coolant (per a GM spec low/no silicate etc). I flushed out most of it and then added new coolant. Working perfect with no leaks, heat problems etc.
Ps. The color does not mean anything since you can have a blue, pink, red, yellow etc. Example, most people think red color is dex-cool or ELC, which it is not. Look at Toyota coolant it is red and a normal EG coolant. The dye is added for some stupid reason per lexus.
Lexus stated this:
“If Genuine Toyota/Lexus coolant is not used, then the aftermarket coolant must be ethylene-glycol based.”
Dye: Since coolant is poisonous if swallowed, we dye the coolant so that it cannot be mistaken for water. Otherwise, there is no special significance to the color choice. Aftermarket coolants can typically be found in yellow-green, blue, and orange.
Last edited by mburnickas; Jan 12, 2005 at 08:20 AM.
“If Genuine Toyota/Lexus coolant is not used, then the aftermarket coolant must be ethylene-glycol based.”
Dye: Since coolant is poisonous if swallowed, we dye the coolant so that it cannot be mistaken for water. Otherwise, there is no special significance to the color choice. Aftermarket coolants can typically be found in yellow-green, blue, and orange.
Why not ask Toyota / Lexus head office directly & let's put this thing to bed.......I'll pose the question to Lexus Canada, & you ask Lexus U.S. head office. Let see what our findings are.
Sincerely,
Customer Satisfaction Representative
At 08/09/2002 11:58 AM
So color means zero. I would have to say that the 5 year or 150K milesi a ELC and not a EG coolant. The normal Lexus Red coolant is normal EG coolant. This topic has been beaten like a red headed step child.
To close, I have asked Lexus on my coolant and it was posted for over 2-years. They, Lexus, stated I can use ANY, repeat any EG coolant in my car, 1998 regardless of color of the fluid.
Sincerely,
Customer Satisfaction Representative
At 08/09/2002 11:58 AM
So color means zero. I would have to say that the 5 year or 150K milesi a ELC and not a EG coolant. The normal Lexus Red coolant is normal EG coolant. This topic has been beaten like a red headed step child.
To close, I have asked Lexus on my coolant and it was posted for over 2-years. They, Lexus, stated I can use ANY, repeat any EG coolant in my car, 1998 regardless of color of the fluid.
I want to know how & what are the differences are (besides the colour!) in terms of performance & longevity. I'll get the answer some place else.......as I know there is a difference.......I need to know specifics (and it's not just the colour).






