Coolant flush
I'm looking to flush my coolant for the first time and I was wondering if the car absolutely needs to be level or if using service ramps will be ok?
I was looking at flushing with Prestone super radiator cleaner or the super flush. Is there any benefit from one over the other?
Also, my car has 124k miles on it (all highway) so any extra tips to help the longevity of my cooling system would be appreciated.
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