Quote:
Originally Posted by rd1959
As long as it is compatible with aluminum engines it should be fine.
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This is not exactly right. Many coolants are incompatible with each other. Unless you are doing an extremely thorough cleaning and flush, you have to be careful that the new coolant won't interact with the old. For example even just a little bit of coolant from a pre-2013 Jeep mixed with a post-2013 Jeep will cause the coolant to become jelly.