People store and assimilate information. Whenever we pass a bad driver on the road, we turn and look. We may not memorize the details, but we absorbe the information and add it to our model. In this case,a set of stereo types, which is part of our model of the world. Over time we recognize the most important aspects of our environment on a subconscious level, improving our driving ability and increasing our available range of perception.
Wednesday, July 30, 2008
Miles Per Gallon
13 Month Moving Average
Vehicle Miles Driven is from DOT.
Gasoline Consumption is from EIA.
My guess is that DOT over estimates VMT and/or EIA under estimates product supplied, leading to the high MPG calculated.
What's important here is the trend.
UPDATE:Finished Motor Gasoline doesn't include diesel. New numbers with diesel here.
28 mpg is too high. US DOT data says average passenger car gets 20mpg. Add an explanation.
ReplyDeleteI simply used total vehicle miles traveled from DOT divided by Gallons of Finish Motor Gasoline Consumed (column S times 1000 divided by 0.0322580645 barrel/gallon). This would inclued all vehicles including motor cycles.
ReplyDeleteMy guess is that DOT over estimates VMT and EIA may under estimate gasoline consumption.
ReplyDeleteThe important thing here is the trend.
A lot of gasoline is not taxed - farm usage and government usage. So the source for the gallons number must be known.
ReplyDeleteVehicle miles is always an estimate. It can't be anything else. And I doubt bureaus bust their butts to refine their methods when driving habits change, new highways open, etc.
Finished Motor Gasoline doesn't include Diesel, that's called Distillate Fuel Oil.
ReplyDeleteNew numbers here
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ReplyDeleteDo you have any video of that? I'd want to
ReplyDeletefind out more details.
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