I have included the make of my car in case it is relevant to my question.
My Jazz is 2 1/2 years old and has covered 17000 miles.
Until May this year the tyres have lost pressure in a manner I would expect - equal across all tyres.
Since May [I keep records] loss has been random - once the steering and brakes felt so odd I returned home. On checking, both off side tyres were down 3 lbs more than the n/s pair.
The latest check revealed the o/s front and n/s rear to be down while the others were fine.
The Jazz is sensitive to pressure loss and I am usually aware of the need to check.
I am at a loss [pun intended] to explain this and would welcome any ideas.
I did wonder if my pump was at fault but after adjustment the car feels fine and drives like it always has.
screwtape
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Anybody fiddling with them whilst its parked up ?
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Has it got alloys?
Our Jazz hasn't and the pressures stayed fine on the original Yokohama tyres and the replacement Michelins are just the same.
Maybe you could find somewhere that has nitrogen and get them filled - that allegedly is less prone to leak out than plain old air (yes, I know air is 80% nitrogen anyway!).
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No screws or other objects in the tread?
What about the valves? Are the cores in tight?
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