Anti - freeze, what is recommend Mazda or another I have Castrol anti freeze why you may ask well I used to work for a rental company and they were all castrol product and its stayed with me. I will be changing all oils shortly,(all Castrol) how often is the anti freeze changed is it 12 or 24 month intervals.I don’t have any previous history other than dealer stamps in the service book, the car has only had two services in it’s life (born 2003)[:D] and 14,250 miles
Mazda say change coolant at 48 months then every 24 months (apart from FL22 on NC that has an 11 year life). I’m a fan of Mazda Super Coolant, see Feb STHT.