- 5/5/2026
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Fuel Consumption
It is well known that a car’s fuel consumption is influenced by several factors that can cause it to be higher than normal. Some of these factors result in only a slight, almost imperceptible increase in consumption, while others cause consumption to be so high that you’ll realize something is wrong.
If your car is consuming a lot of fuel, tires might be the last thing on your mind; you probably don’t think they’ll make much of a difference. But you’d be wrong—tires significantly impact fuel consumption in several ways, including their size, age, quality, and more.
The relationship between fuel consumption and tires is strong and interdependent. For example, if your tires are larger than the recommended size, fuel consumption will increase due to their weight and because the engine has to work harder—even if only slightly—to compensate for the extra weight and higher rolling resistance.
This also applies to tires when their type, age, and quality differ, as well as the amount of air in them—known as tire pressure—which is one of the most important factors affecting fuel consumption in cars, whether the amount is high or low.
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Read also: Tips to reduce fuel consumption
How do tires affect fuel consumption?
Tires have a significant impact on fuel consumption, and this impact manifests in several ways:
Tire Pressure
The most significant issue affecting tires that significantly increases fuel consumption is incorrect tire pressure. Tires lose air over time and drop well below the normal level, which increases fuel consumption—just as having them overinflated does.
Alignment
Incorrect tire alignment will certainly increase rolling resistance on the road because the tire will not be in its optimal position. This will affect fuel consumption, make driving imprecise, and make control more difficult if the misalignment is severe.
Read also: Causes of Engine Oil Consumption
Rolling Resistance
Rolling resistance is the force generated when tires come into contact with the road while driving. The higher the rolling resistance due to incorrect pressure or the wrong size, the more fuel consumption will increase, as the engine will have to work harder to propel the vehicle.
Tire Size
If your car’s tires are larger than the recommended size, they will directly affect fuel consumption because they will occupy more space on the road, which means higher rolling resistance. Additionally, they will weigh more than tires of the correct size, which will also contribute to increased fuel consumption.
Read also: The Dangers of Overinflating Tires
Tire Age
The newer your tires are, the more they will maintain fuel consumption within normal limits. Old, worn-out, or worn tires will increase fuel consumption because their contact with the road will be uneven and improper, and one of them may even puncture, causing a serious accident—God forbid.
Tire Tread
Tire tread also contributes to increased fuel consumption. The deeper the tread—such as on off-road tires—the greater the rolling resistance, leading to higher fuel consumption. In contrast, tires with shallow or standard treads do not consume as much fuel as those with deep or large treads.
Tires Unsuitable for the Season
Each season has its own specific tires, such as summer, winter, or all-season tires. If tires designed for a specific season are used in a season for which they are not intended, they will increase fuel consumption; this is because tires designed for each season have features that distinguish them from others and must be used in the season for which they are intended.
