Are you sure you have 235/75-15's under there? That is a big tire. A risk of
oversized tires with the automatic is the torque converter can be put into a
situation where it continuously slips. This creates a lot of heat for the
cooling system and transmission to handle. You should get some temp
monitoring on the tranny fluid. Did you do something to upgrade the brakes?
Also consider the effect of a tire having a flat or blowout and the
suspensions ability to handle that much droop when a tire goes down. 

Dennis
 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Evan Mac Donald
Sent: Sunday, June 27, 2010 7:12 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Cruising Speed

I run a 1.9 and an auto trans, with 235/75 R15 tires, and usually cruise at
3600-3800 RPM, which places me just under 70mph. I am usually empty, or only
lightly loaded. Camping loading�cuts into the milage, but not the engine
"happy" zone...

--- On Sun, 6/27/10, Stephen Cebula <sfcebula@YAHOO.COM> wrote:

From: Stephen Cebula <sfcebula@YAHOO.COM>
Subject: Cruising Speed
To: vanagon@GERRY.VANAGON.COM
Date: Sunday, June 27, 2010, 3:36 PM

I'm just curious.� At what speed do most of you drive on the freeway? On
flat road, that is...I'm in a 1.9 and� usually keep it around 60mph.