The green coolant has been "aluminum compatible" for quite a while. I'd
agree with clevere about the choice of antifreeze. Even if you used dex,
you would probably still change it every two years anyway....so why
not just use the green coolant and avoid any of the associated problems
that come with dex.
Thanks for the clarification Ian. I actually found a slightly higher priced
type of Prestone today at CTC which stated that it's "aluminum compatible".
It's green Prestone as well and only two bucks more a jug so I'm going with
I've used the green in my 90 olds, 87 chevy cavalier, and my 94 grand prix.
All with aluminum heads .. never had any trouble with the cooling system.
(well, minus a heater core, but it was the plastic hoses that failed, not
the core itself). I wasn't even aware green used to have a problem with
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