Let’s say two cars are being considered.
Both are exactly alike, except one is gasoline powered and the other is Diesel powered.
Both have a 10 gallon tank.
Gasoline is $3.00 a gallon.
Diesel is $3.50 a gallon.
The gasoline model gets 30 mpg.
The Diesel model gets 40 mpg.
Gasoline miles per tank = 300 miles.
Diesel miles per tank = 400 miles.
Gasoline trip costs = $30.00
Diesel trip costs = $35.00
You go 100 miles farther for $5.00 in the Diesel.
That $5.00 would have bought 1.667 gallons of gasoline, that would have carried you only 50 miles...........
Carolyn