I'm reading a copy of the latest edition of a well known motoring magazine, which has just published its Car of the Year award.
Reading a long term test, the following text had me rather confused:-
'For everyday use, the handbook recommends 34psi all round, but manufacturers figures are often on the cautious side, the better to aid fuel economy. I have found 36psi to work best, with more positive steering, no high-speed wander, and no noticeable degredation in ride quality. You can even try 40psi, recommended for high-speed and heavy load use. Doing so means the steering is even more responsive, and grip more plentiful, the downsides being a little more road noise and, presumably, a small increase in fuel consumption and tyre wear.'
Now I am confused! In simple terms, surely higher psi reduces rolling resistance and would result in less fuel being used. Very overinflated tyres would probably wear unevenly, but I wouldn't have thought that increasing tyre pressures a bit would cause more rapid tyre wear.
Who's right?!
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