The simple explanation for fuel consumption being measured in kg/100 km is that a bigger number means more expensive running costs, in exactly the same way that meat costing $20/kg is more expensive than mean costing $10/kg.
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nat Hager III Sent: 10 July 2008 09:32 To: U.S. Metric Association Subject: [USMA:41376] Impressions of a Futurecar - FlowChart (usnews.com) Hydrogen car article in US News... >>>Kilograms per what? The Hydrogen 7 has one of those onboard computers that display your fuel efficiency-for both gasoline and hydrogen. Gas mileage, of course, is measured in the familiar mpg. But hydrogen mileage is flipped around and expressed in kilograms per 100 kilometers. This took a bit of noodling to understand, like figuring out the inverse of a currency exchange in a foreign country. Simply put, it's the metric version of how many gallons it takes to go 100 miles. If you're averaging 4 gallons per 100 miles, for instance, that's the same as 25 miles per gallon; 3 gallons per 100 miles would be 33 mpg. So in hydrogen terms, the lower the number, the better. I started out averaging 3.3 kilograms of hydrogen per 100 kilometers. I tried to drive gently and see if I could improve on that, and I got it down to 2.9 for a while. Then I hit traffic, and it went back up to 3.2. I studied the instant efficiency reading, too, which ranged from 0 to 10. When coasting at about 50 miles per hour-a very efficient speed for most cars-my hydrogen consumption was less than 2 kilograms. But when pressing hard on the accelerator to pass somebody, I pegged the meter, burning the maximum 10 kilograms (or more). >>> http://www.usnews.com/blogs/flowchart/2008/7/9/impressions-of-a-futurecar.ht ml Nat
