Is this extended life coolant code named "FL22"? On my Rx8, the manual does say something about a factory-filled long life coolant that Mazda calls "FL22". The manual says you don't have to change your coolant for the first 48 months too. Thereafter, its once every 2 years. There are FL22 stickers on the radiator cap or on the reservoir tank to tell you its long-life coolant. Just a fancy code I guess... In reality, I think its just a 50-50 pre-mix.
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