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the green stuff is fine, but please change your fluid every 24 months.....it may look fine, but as the age grows so does the acidity level of the coolant and though it looks fine, it will start eating away the aluminum in your engine...if you wanna know whats best is toyota genuine red coolant, mixed 50/50 with distilled water, do a search for toyota coolant and you can read about the advantages and what people have said about its use.

But you are hurting your engine by keeping the coolant in your engine that long.
 

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Bill_Loeffler said:
Thanks for the reply! Would I have to completly flush the entire system before switching to Red coolant? Or can I just drain and refill?

Did our cars come from the factory with the red coolant or is this a new discovery? Thanks...
whenever you do a coolant change, you need to flush it, a drain and fill keeps a lot of crap still in the system....so flush it out completely and then refill with red stuff.....
 
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