Hi Tom,

Perhaps the coolant was slightly too concentrated... Adding 2 cups of
water might then increase its effectiveness and improve the function
of the cooling system.

Hills, headwinds and driving speeds might also have been contributing
factors. Us aircooled drivers are really conscious of that sort of
thing.

Happy Trails,

Greg Potts
1973/74/77/79 Westfakia "Bob The Tomato
www.pottsfamily.ca
www.busesofthecorn.com

On 2-Apr-07, at 10:56 PM, THOMAS IN GEORGIA wrote:

> Hi,
>   I was driving through the Georgia mountains and my 1981 VW
> Vanagon high-top diesel was over heating, I had to drive slow and
> turn on the heater to cool it down. When I got to my camping spot,
> I saw that my coolant was low and added water, just 2 cups to fill
> it. When I drove it back, it did not overheat. Can 2 cups low of
> coolant cause it to overheat? Should I add a fan to the radiator?
>
>   Thomas