Hi all

I own two 6 generation civics and I would like to change the coolant or at least check it how good it still is. In One of the civics I don't know when the coolant was changed because I just own the car for about 2 years but the other one the coolant is about 3 years old.
In the manual it says just to use Hondas engine coolant, they always say that but we can buy engine coolant anywhere, my issue with the coolant is that all shops have many different colours for coolant, why is that? Any reason for that? Even some coolant testers can't be used (apparently) with different colours. Are there some sort of multi purpose testers for coolant which can be used more than once and with all sort of coolants? I wouldn't mind to buy one and check the coolant before buying the coolant it self. Am I gonna damage the radiator or engine by using a different coolant colour? What are these colours all about?

Thanks in advance for any help.

 

go with the prestone 50/50 yellow stuff, or the OEM honda blue stuff

 

Hi guys. Thanks for your help and advice.
Whatever I will be doing, either changing the coolant or just testing it I will do it just after next week because from today I'm off on holidays. Thanks to you all.