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Well according to Toyota / Lexus.....there IS a difference in how long you can go between change intervals. The Pink last longer than the Red.....not because of the colour......because of it's ingredents....again, according to Toyota / Lexus/
Again, I can cut and paste on I have on "My garage" from Lexus.com
Lexus says color means nothing since it is a DYE they add. My on new cars, Lexus says otherwise, but my 98 can use any EG coolant per Lexus.
The red & pink coolant are different......why does one bottle say it's good for 30,000 miles or 2 years (Red 'Long Life') & the other (Pink 'Super Long Life') say it will last for 5 years or 150,000 miles.......there is a big difference there........I'm not concerned about the colour.....it could be 'Antelope Firemist' for all I care......my concern is how long (both in miles & years) it will last before it starts loosing it protection. That's why I'm intrested in the pink coolant.