Air Pressure and Fuel Consumption

It is important to check air pressure to avoid excessive fuel consumption.

Air pressure decreases naturally

Tyre air pressure decreases naturally (little by little). It is generally accepted that air pressure in tyres on a passenger car decreases by 5 - 10 % (10 - 20 kPa) every month.

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Impact of low air pressure on fuel consumption

According to material released by The Energy Conservation Center, Japan, fuel consumption increases by around 2% in urban zones and 4% in the suburbs when air pressure drops 50 kPa (0.5 kgf/cm²) below the appropriate level. Please check air pressure once a month to ensure environmentally friendly and safe driving.  

Adequately managing air pressure is important not only to maximize the features of the tyre but also to avoid an increase in fuel consumption.

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Tyre Pressure Handbook 2010/11

Please use this handbook as a basic guideline. There might be the possibility that the handbook doesn't meet  the regulation in your country. You can find your precise tyre pressure either in fuel door or in the handbook of your car. You can always contact your local YOKOHAMA or car dealer for personal advise.

Using a bivycle to illustrate the relation between tyres and air pressure

 

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