I've got no opinion on Red Tek. But I've been using Duracool (one of
the propane derivative freons) and just converted my Westy to it this
weekend. Be aware that it may be illegal in some states (Maryland,
Virginia plus DC for sure)...but in weather like we're having (90+ with
very high humidity) it works so effectively I had to lower the
themostat setting and lower the speed of the fans to stave off the
goose bumps.

PS I have no affiliation with Duracool, other than being a satisfied
customer.

On Monday, July 7, 2003, at 10:07  AM, Vanagon Man wrote:

> My 88 vanagon is currently charged with r-134.  It blows cold when it
> is 70
> or 80 degrees outside, but when it is 100 out like now here in SC, I
> might
> get the cabin down to 80-85 degrees.  Pressures are right on, no leaks.
>
> Now, I am considering removing some of my r-134 and poutting som
> red-tek
> in...................can someone please advise to what i could achieve
> by
> this?