Fuel Mileage Chart

To determine actual savings, multiply gallons saved by price per gallon.

An aid to determine the validity of cost in purchasing fuel mileage improvement devices.
Original
MPG
% Increase in MPG - (Gallons Saved Every 25,000 Miles in Red)
5%
10%
15%
20%
25%
30%
35%
40%
4
 313 625 938 1,250 1,563 1,875 2,188 2,500
6
 208 417 625 833 1,042 1,250 1,459 1,667
8
 165 313 469 625 781 938 1,094 1,250
10
 125 250 375 500 625 750 875 1,000
12
 104 208 313 417 521 625 729 833
14
 89 179 268 357 447 536 625 714
16
 78 156 235 313 391 469 547 625
18
 70 139 208 278 347 417 486 556
20
 63 125 188 250 313 375 438 500
22
 57 114 170 227 284 341 398 454
24
 52 104 156 208 261 313 365 417
26
 48 96 144 192 241 289 337 385
28
 45 89 134 179 223 268 313 357
30
 42 83 125 167 208 250 292 333
32
 39 78 117 156 195 234 273 312
34
 37 74 110 147 184 221 257 294
36
 35 69 104 139 174 208 243 278
38
 33 66 99 132 165 197 230 263
40
 31 63 94 125 156 188 219 250

To determine actual savings, multiply gallons saved by price per gallon. If the price per gallon is $3.00 and you save 313 gallons of fuel according to the chart, then that equates to $939.00. If you spend $939.00 dollars on fuel saving devices, then you drove 25,000 miles before breaking even. As you can see by this chart, even meager percent savings in fuel on low mileage vehicles nets more savings in actual money. But vehicles getting good mileage and therefore have less overall fuel consumption, see poor savings amounts even with a bigger percentage mileage increase. Better to avoid spending too much money on fuel saving devices if the vehicle has good mileage. Otherwise you may not see a return on your investment for quite a long time. On the contrast, low mileage heavy fuel consumption vehicles tend to net bigger savings in actual money more quickly and return your original investment on fuel mileage saving equipment more quickly. Once your investment is paid back, all your savings are money in your pocket.