I need to do this ASAP as my car is about to turn 40,000 miles and is still running with the original coolant.
I keep forgetting to do it. Anyway, is there anything special I need to know to do this? I have been changing my own oil and filters and everything, but I have never had to change coolant before. I basically just drain all of the old stuff out, then refill it wil Dex-cool, right? Do I have to mix the Dex-cool with water, or is it pre-mixed? Is there any kind of tests or anything I should get done? Thanks for any input.
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