Me too. See Bentley 90.30: "... the only [DOT] requirement is that the
speedometer indicate a higher speed than is being driven."

The '84 & '85 are the worst, as much as 16% error because VW put European
calibrated heads in, and my '85 is +11%.   Before and after years are
supposed to be +/- 3%.

Just another annoyance among many.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Karl Ploessl
Sent: Monday, May 06, 2013 1:29 PM
To: vanagon@GERRY.VANAGON.COM
Subject: speedometer accuracy

so I finally got a GPS in my van. And what do I notice?
Speedometer says 60 mph and GPS says 45 mph! At 70 (speedometer) the GPS
says 62!
I am running Michelin Agilis 61 in size 185/14 C and it is a Westy 81
aircooled. And it is in Delaware to satisfy Scott.
The question I have: does this discrepancy also affect the odometer?

------
Karl
1981 Westy "Jenny"
2000 VW Jetta GLS VR6
Wilmington, DE