- Jul 19, 2006
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thanks for the info...I don't think there's a difference anymore. Most coolants are ethylene glycol based which means they are aluminium friendly coolant. Old coolants were made with substances meant for steel radiators and weren't compatible with aluminium radiators. But since 90% of the new cars out there use aluminium radiators as stock, it only makes sense to stop producing the old coolant since the ethylene glycol based coolants are compatible anyway.
But I could be wrong. I used Toyota (red colour) and Nissan (green colour) coolants in my car and the default one was red in colour. All seems to work for me.
i find the green coolant to be much cheaper then the so called LLC(long life coolant).
however i find dat at the label...the red color coolant(LLC) is also recommend to be changed annually...