If it's a small leak, just top off the tank every morning when the van is cold, there will be a bubble in it.  Use any coolant at 50% unless you are using a long life coolant. If you are, use only that or you will turn it into short life coolant.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Stan Shapiro
Sent: Wednesday, October 28, 2015 1:02 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Coolant cap

    
My blue coolant cap is leaking slightly. I have another cap on order it will take 2 days. Any suggestions on what I could do that temporize the leak while I'm waiting for the cap?
Here's the sad part, after reading this board, about a month ago I ordered two new caps but they were delivered to my house a few days after I left on this trip.
Stan

Sent from my Verizon Wireless 4G LTE smartphone