Re: [MBZ] Absolutely pathetic fuel "economy"

[David Brodbeck]

Another thought: VDO odometers have a tendency to develop cracks in the 
gears that make them stick or slip at certain points in the rotation.  
(I had one in a VW that would stick briefly every time three tenths came 
around, for example.)  This isn't always very noticeable if you aren't 
watching closely, and it can cause low and wildly variable fuel economy 
numbers.