Quote:
Originally Posted by Frank Lee
Cuppola things:
1. mpg may not be the "best" metric but it's what we've long used. It's tough to turn ships this big around. Remember in the '70's when the entire U.S. WOULD BE METRIC in a few years??? Go ahead and use gpm and see how many really get it and how many have eyes glazed over.
2. Don't assume fixed distances either. It is proven that miles driven varies with various economic conditions.
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Divide 10,000 by mpg and you have the number. If they printed gp10km on new cars and websites, not everyone but alot people would start using it. At least while they were making the purchasing decisions. It would be much more memorable and accurate than this will cost so much per year sticker they already have. No I dont think we're going to km/l any time soon like the europeans, but that is smarter than l/km. I dont remember the 70's. Did they make speed limit signs with both km/h and mph? My backwards state has highways exits with seqential numbering but did the states with distance numbering have plans to change the exit numbers?
2.Yes the price elasticity of gasoline does not allow either to be fixed entirely. However the gallons reduce proportionly to the distance driven with gpm so its easy to see that. The gpm and gallons reduce proportionally with improvements in fuel efficiency. I think its better to keep track of gallons than the possible miles you can now drive. I dont know anyone who spends an exact amount on gas or buys an exact amount of gallons and then drives that and no more or less. mpg is better for determing the range of your vehicle than your gas usage.