100 miles/day / 28 mpg = 3.6 gal/day * 200 work days/year = 720 gal/year
My commute is 100 km, but I'll use your numbers to compare:
summer 1995 Kawi Ninja 600E, 600cc, 51 mpg
100 miles/day / 51 mpg = 1.96 gal/day * 100 work days/year = 196 gal/year
winter 2001 Honda CRV 2L, 25 mpg
100 miles/day / 25 mpg = 4 gal/day * 100 work days/year = 400 gal/year
Total = 196 + 400 = 596 vs 720
Saving 124 gal/year:
$4/gal = $496
$5/gal = $620
$6/gal = $744
Note these are older machines, no hybrid technology of any sort. In fact my bike doesn't even have fuel injection, old style carburetor.
My real winter number is lower because I only drive SUV during bad weather and take a car otherwise.
Despite better engines, the big difference is weight of a machine: 400 pound motorcycle vs 3K car (about) vs ??? truck/SUV (don't even know their weight)
Unless you make a radical engine design change (such as hybrid) you just cannot make up for the weight difference.
My commute is 100 km, but I'll use your numbers to compare:
summer 1995 Kawi Ninja 600E, 600cc, 51 mpg
100 miles/day / 51 mpg = 1.96 gal/day * 100 work days/year = 196 gal/year
winter 2001 Honda CRV 2L, 25 mpg
100 miles/day / 25 mpg = 4 gal/day * 100 work days/year = 400 gal/year
Total = 196 + 400 = 596 vs 720
Saving 124 gal/year:
$4/gal = $496
$5/gal = $620
$6/gal = $744
Note these are older machines, no hybrid technology of any sort. In fact my bike doesn't even have fuel injection, old style carburetor.
My real winter number is lower because I only drive SUV during bad weather and take a car otherwise.
Despite better engines, the big difference is weight of a machine: 400 pound motorcycle vs 3K car (about) vs ??? truck/SUV (don't even know their weight)
Unless you make a radical engine design change (such as hybrid) you just cannot make up for the weight difference.