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4x4/SUV tyres and fuel economy


aris
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Has anyone seen a difference in fuel economy when changing from one brand/model tyre to another? I see that all new tyres now come with efficiency ratings - a bit like household appliances.

 

Best I can see from the literature that the difference between an 'A' rated tyre (which i've never seen for a 4x4 vehicle) and a G rated tyre is a 7.5-8.0% difference in fuel efficiency. This is rated on a machine based on rolling resistance rather than real-world tests.

 

What tyres do you use for your 4x4?

 

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probably see more of a change going from a tyre close to the limit to a new tyre, rolling diameter will alter the gearing but as your speedo runs on whatever the the gearbox is telling it you would struggle to see any change unless you do set mileage every week and notice a change in how much you put in every week, having said that if tyre choice and fuel consumption are that much of an issue, don`t run a 4x4, they are built to do a job, not 99 mpg

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probably see more of a change going from a tyre close to the limit to a new tyre, rolling diameter will alter the gearing but as your speedo runs on whatever the the gearbox is telling it you would struggle to see any change unless you do set mileage every week and notice a change in how much you put in every week, having said that if tyre choice and fuel consumption are that much of an issue, don`t run a 4x4, they are built to do a job, not 99 mpg

As for the reason for the change, not really for the mpg more the noise. As for running costs, I really don't give a monkey's.

If I still had my punto it would greatly restrict my shooting

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