Highly recommended to use Toyota SLLC on these forums. Some users of Redline products. But the jug of no name stuff from the auto discount store....avoid.
The service manual indicates: "Only use ”Toyota Super Long Life Coolant”, or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology." So if you can find a non-Toyota coolant which qualifies per the above, that would be OK.
