Tyre pressures.... need to check....

[Banana Co]

Hi All, So i'm taking the fiesta on holiday tomorrow, it is rammed, tent, roof box and all the gear that goes with it. Also might take the wife and boy with me.

 

Anyway, went to the garage to check tyre pressures and thought it wise to use the guide on the door for heavy loads.  The front on my 195,55,15's was as expected 33 but the rear 195,55,15's list it at 46.... is that right? I looked multiple times to ensure I had read it right. Yep, 46. So i went for it. I've never had a car that needed anything over 36psi. Can you bods confirm that its right? Don't want to get a blow out down the M4!

[Jethro_Tull]

Yes, that's right.

[Banana Co]

I kind of guessed it would be, I mean its not going to be a mis print. Just shocked how high it was, once  I arrive and unload would I be best advised to let some out?

[Jonro2009]

I would let air out back down to the recommended pressure for an unladen car, yes.


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[cjay1]

It can get a bit rear end happy if you don't reduce the pressure back down when unladen. Fuel economy is better though but that's the trade off I suppose.

[Bobr]

It will also wear the rear tyres in the centre of the tread if you don't reduce the pressures.   If you have the latex injector thing instead of a spare wheel you can use the compressor to pump up your tyres again.

[cjay1]

Shouldn't do as long as the pressure is within tire spec max  psi which is printed on the  side of the tire, but if you run at these pressures cornering and braking performance is reduced. So probably best not to