Lambert's heater fix

Thanks for the further details, Lambert. This is all very useful stuff.

The BigJimny Wiki states that the coolant above all else, MUST BE "STRICTLY SILICATE FREE" (and I think that is possibly true of all Japanese cars)

It also states:
It SHOULD BE
Ethylene-glycol;
Preferably 2-EHA free;
Preferably phosphated;
And, if diluting a coolant concentrate with water, use only distilled water (which I'm sure is different to De-ionised water)

The colours of coolant fluids are what confuses a lot of folk and the type of fluid is not to be defined by its colour, one example of this is the Halfords Silicate free coolant which is pink (I know because I have some in my workshop) and Bluecol brand is red, whereas I have found others that are blue, green or even yellow!

Reading several articles late last night leads me to think that its the mixing of the two different types of fluids that causes sludge to occur, so if someone has topped up with the wrong fluid thats where the problems begin.
Like you I don't know where the blockage is or what has caused it (I'm only assuming it is the heater matrix!)

For anyone else following this thread other useful information for mixing a 50/50 coolant is knowing the Jimny's coolant capacity which I found in the attached notes






Oh yes, and don't get this stuff on your paintwork - or if you do - wash it off thoroughly and immediately