The real variable here is the speedo.  Accuracy = seems to vary alot.  Are you really doing 60 MPH?  Try comparing to a = measured mile (those little numbered posts alongside the interstates).  = Before our tire swap, I discovered that an indicated 70 MPH, was actually more like = 65MPH.   Regarding the tach, the green area is the where the = engine is "happiest" making useable power.  The area above green and below = red is not dangerous, it's just not the best choice.  It is true however that = the faster she spins, the more stress and wear she sees. 
 
Gary
----- Original Message -----
From: Stephen Steele
To: vanagon@GERRY.VANAGON.COM
Sent: Sunday, October 15, 2000 = 12:41 AM
Subject: Re: Safe RPM's

(snip) > This puts it on the upper limit of = the
> "green" on the tach.  Is this normal for an automatic?
FWIW...This matches my numbers for a similarly equipped = 91 Caravelle.
> I usually drive between 65 and 75 and get 17-18 = miles per gal.  I'd like to drop the rpms
> (longer engine life), = but hate paying $$$ for larger rims, etc.
> TIA for any = responses.
> Ken Hartz
My mileage stays the same loaded with four bikes, two canoes,two kayaks or empty.
--
Stephen Steele
'91 Caravelle
Chillicothe, OH