Frankp2112 Posted April 12, 2017 Report Share Posted April 12, 2017 Hi, I have been looking at my coolant - before I bought the car the water pump was changed and I assume the coolant was replaced. The coolant I have in the car is yellow - the coolant I have seen that is OAT is red. As I am not 100% sure what coolant I have i was planning to change it. Should you flush the system with dionized water or can you flush with tap water? Thanks Frank Link to comment Share on other sites More sharing options...
MakeTeaNotWar Posted April 12, 2017 Report Share Posted April 12, 2017 I'm too new to answer this for you, but my understanding was each type of coolant had a colour, and you should expect to see yellow where red was once used. Link to comment Share on other sites More sharing options...
beerbelly Posted April 12, 2017 Report Share Posted April 12, 2017 reds longer lasting flush it with tap water will be fine Link to comment Share on other sites More sharing options...
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