Tyre Pressure & MPG

[NimBoy]

Just a quick question, my cars at the moment has pressure reccomended for over 160kmh/100mph. So its around 38 in the front. I rarely do anything above 75, would i get better mpg if was to lower my tyre pressures all around ?

I have some pirellis on there at the moment

 

[flyerphil]

No I would say you get better fuel consumption with hard tyres, less rolling resistance.

 

[BlueVTEC]

Phil is spot on.

The harder the tyre, the less rolling resistance there is which means less fuel consumption. However, you will compromise road noise and grip (especially in the wet) more and more as the pressures rise, so I personally wouldn't go above 35psi.

 

[NimBoy]

Thanks guys, Great Info