Originally posted by Mr Hyde
No its not, that being said, you also dont have to use Honda coolant, but you must use coolants which are borate and silicate free which are usually the extended life coolants. Anything else can cause wear on the seals and waterpump., and eventually leak. Prestone extended life which is orange is a good example of something that is perfectly fine to use.
hhmm...how important is this really? If u use the wrong coolant but change at intervals less than "recommended", will it be fine?
The properties that the coolant must have are actually harmful elemets that harm our seals removed? Why are they there if they harm seals? Or do they JUST harm Honda's seals? Basically what i'm getting at is why would a company put out a coolant that harms engines.
Thanx!
Dave