Quote:
Originally Posted by dts3
I was assuming that I can use the 50/50 blue from the dealer without worry.
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You should be able to use 50/50 ... if the last person that filled the system used the proper ratio. Maybe they did. Maybe they didn't. You can get antifreeze checkers for about $5 at just about any parts store (you don't have to be all that accurate, so a cheapo will do).