I've read mixed reviews of whether these 2 coolants are fully compatible. Reason I ask is, I'm getting the timing belt and water pump done on my Corolla this week and the tech that's doing it said he has the Pink Super Long Life in stock but not the older Red. I don't really want to fuss with doing a super duper coolant flush procedure to get the pink out and refill with red. Will the 2 mix OK, or should I flush it? The car has only used the older red formula it's entire life.
Last edited by Drew99GT; 05/25/16 10:51 AM.