e85 Conversion Kits - Calculate Savings

Not sure if using E85 is cost effective? This calculator calculates the true costs of both fuels.
Gas Price	Gas MPG		Cost per mile:	0.00	Miles per dollar:	0.00
E85 Price	E85 MPG	[with EToM]	Cost per mile:	0.00	Miles per dollar:	0.00

	Miles Driven		eTOM Potential Savings
	15,000		0.00
	30,000		0.00
	60,000		0.00
	120,000		0.00

Calculating MPG

Odometer Method

MPG can be calculated in four easy steps:

Step 1.	Filling the vehicle's fuel tank completely and writing down the vehicle's odometer reading (mileage).	Example: The last time the tank was filled, the odometer reading was 32,645.1 miles.

Step 2.	When it's time to refuel, filling the tank completely and writing down the number of gallons it took to fill the tank and the vehicle's new odometer reading. Once two odometer readings are taken, MPG can be calculated.	Example: The next time the tank was filled, the odometer reading was 33,001.3. It took 13.5 gallons to fill the tank.

Step 3.	Calculating the distance driven by subtracting the previous odometer reading from the new one.	Example: The distance driven would be 33,001.3 minus 32,645.1, or 356.2 miles.

Step 4.	Dividing the number of miles driven by the number of gallons it took to fill the tank. The result is the vehicle's MPG for that driving period.	Example: 356.2 miles divided by 13.5 gallons equals 26.4 miles per gallon. The MPG for that driving period would be 26.4.

Alternate Method

If you use your vehicle's trip odometer, MPG can be calculated by:

Step 1.	Filling the vehicle's fuel tank completely and re-setting the trip odometer.	Note: Sometimes it's easy to get the main odometer and trip odometer readings confused, especially if the vehicle is new.

Step 2.	When it's time to re-fuel Filling the tank completely Writing down the number of gallons it took to fill the tank Writing down the mileage on the trip odometer Re-setting the trip odometer	Example: It took 9.5 gallons to completely fill the tank, and the trip odometer reads 335 miles.

Step 3.	Dividing the number of miles driven by the number of gallons it took to fill the tank. The result is the vehicle's MPG for that driving period.	Example: 335 miles divided by 9.5 gallons equals 35.5 miles per gallon.

Tips:

The higher the MPG, the more efficient your car is, and the cheaper it'll be to keep it fueled.

To determine how a change in gas prices will affect your budget, take the number of miles you expect to drive in a week (or a month, or a year) and divide it by your MPG. Then multiply that answer by the price of gas per gallon. By plugging in different prices, you'll see how much more - or less - you end up paying per week (or per month, or per year).

Try calculating your MPG more than once to get a more accurate measurement. If you did more highway driving than normal, then your MPG will be a little higher. On the flip side, if you did a little extra city (stop and go) driving, your MPG will be lower.

You can use the MPG to experiment with ways to increase fuel efficiency. For example, if you normally drive at an average of 70 MPH, then after calculating your MPG, try driving at 55 MPH and measure your MPG again - you'll probably see it go up.

Warnings:

Mileage will vary with different driving patterns, the less braking and acceleration will lead to better mileage. You will see higher mileage when taking highway trips than you will after a week of driving back and forth to work on city streets.

Calculating MPG

Odometer Method MPG can be calculated in four easy steps:

Alternate Method If you use your vehicle's trip odometer, MPG can be calculated by:

Odometer Method

MPG can be calculated in four easy steps:

Alternate Method

If you use your vehicle's trip odometer, MPG can be calculated by: