Hi John

I am not a Vanagon mechanic but I will share with you why I change the
coolant every two years. Almost every Vanagon mechanic I have met
recommended that interval.
Secondly the guys that work on their own Vanagons and have accumulated a
lot of experience recommend the same interval. Some people even change it
every year.
My opinion is based on speaking with those that know these vehicles and are
very familiar with the engine. I am comfortable doing what they do. I am
not a mechanic but thought I would pass this along anyway. Good luck.
I know you said you aren't interested in opinions just facts but I will
give you an opinion anyway I really think it's time you flushed your coolant
​​
. Take care,

Bernie
Vancouver

On Tue, Apr 4, 2017 at 2:47 PM, John Lauterbach <john@jhl.mgacoxmail.com>
wrote:

> We need facts, not opinions.   I know that some of you reapir vanagon
> for a living.  How often should I drain and flush the cooling system on
> my Vanagon;  The last time my Vanagon saw new coolant was August 2003
> What would you do if you were servicing my Vanagon?
>
> John
>
>
>
>