Sure going from 10 to 20 saves a LOT of money on fuel.
Going from 20 to 30 a bit more....
Maybe I missed the math class that taught that 50% was more than 100%...
I understand your gist, but when gasoline gets back to $4+, and you MUST drive, a little can be a lot!
Maybe I missed the math class that taught that 50% was more than 100%...Don’t be fooled by the miles per gallon stats game.Sure going from 10 to 20 saves a LOT of money on fuel.
Going from 20 to 30 a bit more.
But beyond that, the cost / savings ratio is really bad.
I understand your gist, but when gasoline gets back to $4+, and you MUST drive, a little can be a lot!
The logic is simple: if you use 1000 gallons of gasoline per year, say, and then you switch from an SUV which gets 18 mpg to a sedan which gets 36 mpg, you will reduce your fuel consumption by 500 gallons/year, all else equal. But from there, no matter how much mpg you get in an even smaller, lighter vehicle, as long as you use any gasoline at all you cannot save another 500 gallons per year.It's similar to the logic I used in creating a car pool - I suggested it to a friend, and he resisted at first on the basis that we probably couldn't get anyone else to join the pool but the two of us. But when I pointed out that if the two of us carpooled each of us would save half of the gas that we used traveling seperately, and that no matter how many more people you added to the carpool you couldn't save that much again, he agreed. And we shared rides for years after that.