Coolant replacement on 2000 Toyota Echo

Hello:
Mechanic has told me that he has a clear coolant that works when mixed with any other color coolant that had been previously put in the car (i.e., if you're last coolant replacement that was red, you should go with red or use this clear coolant replacement). Is this so or should I go with the color I used last time?
Thanks a bunch--

Asked by for the 2000 Toyota Echo
0 answers