THE MATH, NO DRAMA

Fuel-cost difference estimator.

Compare two fuel economy estimates across the same miles, without pretending the math includes vehicle ownership.

At 15,000 miles, 25 MPG uses 600 US gallons and 40 MPG uses 375. At $4 per gallon, the fuel-cost difference is $900 annually. This is not total cost of ownership.
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Compare gallons before dollarsAt 15,000 miles, 25 MPG uses 600 US gallons and 40 MPG uses 375. At $4 per gallon, the fuel-cost difference is $900 annually. This is not total cost of ownership.Reference: Existing calculator — transparent arithmetic

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YOUR ESTIMATE

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Fuel cost is not profit, a car payment, or total ownership cost. Real-world MPG, fuel price, repairs, insurance, taxes and depreciation can change the comparison.

UNDERSTAND THE ASSUMPTIONS

One calculator cannot make the purchase for you.

Fuel cost is not profit, a car payment, or total ownership cost. Real-world MPG, fuel price, repairs, insurance, taxes and depreciation can change the comparison.

PUT THE RESULT TO WORK

The upgrade has to earn back its purchase price

At 15,000 miles per year and $4 per gallon, moving from 25 to 40 MPG saves $900 annually in fuel. An illustrative $4,000 purchase premium therefore takes about 4.4 years to recover on fuel alone. Financing, insurance, maintenance, resale and any other cost differences can change that result.

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