Over filling the air in tyres

should be 38 front 46 rear for carrying a full load so if the tyres were hot then it is reasonable to suspect 50 psi in the rear tyres I suppose.

"Matthew.Ridges" gurgled happily, sounding much like they were saying:

I'm not surprised. Higher pressures do give slightly better fuel economy, but at the expense of ride, grip and tyre life.

The usual short-termism.

Ok, I usually put 32 psi in all round on my golf, occassionally a little more in the rear on heavy loads.

On 15/06/2010 10:47, Matthew.Ridges wrote: [...]

Would you should do is inflate them to the manufacturer's stated pressure.

If the pressure varies significantly from that, you are commiting an offence, at least in theory.

Chris

Not to mention burst tyres. I came across a woman on a lonely country road who had a blowout. I changed the tyre for her and decided to check the pressure in the others - found that to be around 70 PSI.

She had checked the pressure earlier in the day, and had filled the tyres "until the hose stopped hissing".

John

I believe that the insurers may well fight a payout if it can be shown that incorrect tyre pressures contributed to an accident.

Rob Graham

I find that amazing, considering that tyre shops often put in wrong tyre pressures. They just look up the car model; not considering that each model can be specified with different wheel/tyres. Hence low profile tyres often get to little pressure.

Moral - never believe this sort of institution.

Rob

We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember johannes saying something like:

Hah! I was interested in why my local tyre monkey kept inflating my tyres to mega-pressures. He was reading the max pressure from the sidewall and taking that as the normal pressure. He did this with every tyre that passed through the place for a couple of years, the dangerous bastard.

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Last puncture repair I had at KwikFit, I realised soon after, because of the unbelievably skittish ride, that the tyre had been inflated to about 60psi (routine, I think, for leak checks) but not deflated to the correct pressure.

Appelation Controlee gurgled happily, sounding much like they were saying:

Normally, they'd just be inflated until the bead seats (bloody great big bang), then adjusted to the actual pressure - normally up.