Mark,
I am sorry, this does not address your specific question very well but I wanted
to offer reinforcement to your use of "orange" antifreeze. I had to provide
jumper cables to a fellow in my office complex with a new Audi TT yesterday and
noticed that the antifreeze in the overflow WAS ORANGE. I figured that this was
a pretty close to blasphemy, but having embraced DEXCOOL several year ago, I
felt vindicated. Watch my heads start leaking tomorrow...

But on your original idea, this is pretty close to what I do, I force flow water
for 10 - 15 minutes, crank it up and bring it to temperature, and then drain
again and fill with two gallons of orange antifreeze and water. It seems to
work, though I still have the "blinking red light with nothing wrong" syndrome.
Making progress on a solution there, I think.

I think there is solid logic behind "fresh fluids" of all types at regular
intervals for extended mechanical function in vanagons and other automotive
efforts, and people too, for that matter. .

travel well,

jim henry
84 westy

Mark Ingalls wrote:

> I have a new hose kit for a 85 GL. When I change them I want to change from
> VW coolant to Prestone Orange or something like that because it is  cheaper,
> easier to get, most likely a fresher product, works as well as VW if I
> change it every year from what I gather.
>
> My question is I would like to flush the system of all the VW antifreeze to
> avoid any compatability problems but I don't want to pull the head drain
> plugs.
>
> I am going to use Boston Bobs procedure for bleeding the system so I was
> thinking of filling the system with water after I drain it then drain again.
> Then fill with coolant and bleed.
>
> Anybody have any better ideas or tips?
>
> Mark Ingalls
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