Not all the description is visible but from what I can make out the unit assess the number of fluid ounces consumed over a presets time / distance.
If it’s accurate & your passenger has his or he slide rule or Babbage’s sum & difference engine & a quality stopwatch to corroborate the figures, your fuel economy could be calculated in minutes.
With enough paper & a fountain pen, a chart could be drawn up over the following hours to indicate how you driving was ages ago, by which time you’ve lost interest.
Brilliant, I love old advertising leaflets like this.
Could you retake the picture with more text please, thanks.
M

Read More...