Correct answer
Yes, because there is greater friction with the road surface.
When the tyre inflation pressure is lower than recommended, fuel consumption increases. This is because under-inflated tyres have greater rolling resistance due to several factors, such as excessive sidewall deformation and excessive heating. In addition, they wear more quickly at the edges of the tread, which reduces the wheel's efficiency. All of this leads to greater rolling resistance, meaning the engine has to work harder to keep the vehicle moving, resulting in higher fuel consumption.
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All options
Yes, because there is greater friction with the road surface.
No, as long as the pressures are balanced across all the vehicle's tyres.
Yes, and in addition the wear is greater in the centre of the tread.
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