I have 225/40ZR18 tyres on my C70 T5, and run them at 34F/32R (the label on the door says 33F/30R, but that's for 225/45R17).
They always look a bit flat to me and I wondered whether 36 all round (Volvo's recommended pressure for a full load) might be better.
Obviously I don't have to think about the same kind of load-carrying requirements as, say, a V70 or 850 estate. But I don't want the ride to be much harsher.
I'm sure I could just try it and see, but thought I'd invite opinions and anecdotes from your varied experiences!
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