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First we need to compare apples to apples and in this example we are not.
If the tires were the same height, and these are not, and the vehicle is well within the weight the tires are rated for then the narrower tire will provide better fuel economy.
Things that will mess up the comparison:
- Tires would need to be same make model etc
- Tires will need to be inflated to ideal pressure
- Different height tires mess with gear ratios, speedometer calibration and this will affect fuel economy
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∙ 11y ago
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Tom drives 290 miles on 23.2 gals of gas and Sui drives 225 on 15 gals of gas Whose car had better gas mileage?
To find the better gas mileage, divide the miles driven by the number of gallons used and compare: (1) Tom: 290 ÷ 23.2 = 12.5 miles per gallon; (2) Sui: 225 ÷ 15 = 15 miles per fallon. Sui had the better mileage.
What calculator is best for determining my mileage?
The MPG-o-Matic Gas Mileage calculator is the latest and greatest when it comes to specifically looking for gas mileage.
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According to AAA the best gas mileage calculator is their own. The AAA gas mileage calculator is easy to use, and very accurate for the customer to feel safe in the miles driven on a certain amount of gas.
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The best site for a gas mileage calculator is at gascar dot com. That site has a good tool to see what you are actually getting out of the car and which is best and worse.
