Coolant question?

[Gaz2480]

I'm thinking of changing the coolant in my ph2 172, I have read that you need grade D I thing which is the green stuff. I was wondering wether I would be alright with blue stuff as I have got a 45 gallon drum full of the stuff at work. I'm not sure what grade or anything it is as the stickers on the drum have faded dramatically. Up till tonight I thought all coolant was the same :s.

 

[davo172]

No mate just use the renault type D not worth the risk for what it costs.