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considering the damage could have been done in the early life of these tyres. Once that happens, no amount of aligning is going to put back the missing rubber so the worn area will always be the first to wear right out.
Quote from: surferdude on November 28, 2011, 09:51:21considering the damage could have been done in the early life of these tyres. Once that happens, no amount of aligning is going to put back the missing rubber so the worn area will always be the first to wear right out.Some members regularly rotate their wheels to even out tyre wear. If the wear is uneven, what is the theory of putting these tyres to the rear, only to damage a perfectly good rear tyre by swapping them to the front. If the wear is severely uneven, then the cause should be investigated and I would put new fronts on once the problem has been eradicated, if possible.
Quote from: baradeur on November 02, 2011, 11:46:18Quote from: Lune on November 02, 2011, 11:17:25 42 psi on all 4,That's way above recommended! In the event of an accident I wonder what a specialist investigator might conclude?Might be worth taking the time to read this, or at least skim it (50 pages).Again, as I have said before, it is low pressure which is at fault in the vast majority of cases. Whilst I can find pages and pages of stuff about under-inflation, I've still to find any definitive info on "extreme" over inflation. (my definition - acknowledged). And 42 isn't in the "extreme" range. It is at the top end of what is acceptable for a passenger tyre.
Quote from: Lune on November 02, 2011, 11:17:25 42 psi on all 4,That's way above recommended! In the event of an accident I wonder what a specialist investigator might conclude?
42 psi on all 4,
I've said this on more than 1 occasion if an innocent parties vehicle is involved in an accident having tyre pressure which does not accord with the manufacturers speci then that vehicle may have contributed to the accident, indirectly.i.e. stopping distance will be changed due to increased/decrease in pressure, the % of tyre in contact with road may be less. There could be "bounce" present.I know here in the UK in some accidents the Police will check tyre pressure and report on them and "innocent" vehicles/drivers have been held liable.
Quote from: surferdude on November 02, 2011, 20:26:20Quote from: baradeur on November 02, 2011, 11:46:18Quote from: Lune on November 02, 2011, 11:17:25 42 psi on all 4,That's way above recommended! In the event of an accident I wonder what a specialist investigator might conclude?Might be worth taking the time to read this, or at least skim it (50 pages).Again, as I have said before, it is low pressure which is at fault in the vast majority of cases. Whilst I can find pages and pages of stuff about under-inflation, I've still to find any definitive info on "extreme" over inflation. (my definition - acknowledged). And 42 isn't in the "extreme" range. It is at the top end of what is acceptable for a passenger tyre.I have now read the link which, to be quite honest, is a patchwork of various reports and reaches no real conclusions overall.As you cannot find any definitive information on " extreme" over-inflation how can you consider that 42 psi instead of 32 psi isn't extreme and is acceptable for a passenger tyre other than it is a personal opinion? One thing that the report does mention in relation to over-inflation is that it leads to excessive wear in the centre of the tread and I am sure you would concur with that. It also mentions that tyre pressures are reached as a result of both tyre and vehicle manufacturers' test conclusions. Having worked for many years for a major vehicle manufacturer in the SVO department and with my father in law in the engineering department for over 30 years I prefer to stick with what the manufacturer requires knowing how the results are attained.
Eye, Are some of those details on the public record? Any links would be appreciated. I've been unable to find any.
I agree with your comments about over-inflation. The only thing we seem to be at variance with is the definition of same. I'm happy with 40 psi (use 36 or 38 myself - depending onn a variety of conditions). What's your take on this?
...had another short stint in hospital,
yEAH i gUESS the torque could be a small contributing factor ...
iF THIS IS ONLY AN ISSUE ON THE DIESEL VERSIONS, MAY THIS NOT BE CAUSED BY THE 2 MAJOR DIFFERENCES TO THE PETROL VERSIONS?wEIGHT & TORQUE?i KNOW MY FRONT TYRES ON MY LAST CAR STRUGGLED TO DO MORE THAN 20,000 MILES.Damn... sorry for the cApsLOcKdysLExIa!
Hiya Surferdude, well you have far more tyre knowledge than I do for sure. I am though, one of those drivers who religiously checks / corrects tyre pressures every weekend, and so under / over inflation has never been an issue on any car I've had in 40 years of driving. Shoulder wear I had always figured was down to tracking / castor / camber angles, unless BOTH shoulders were prematurely worn, indicative of under inflation. Maybe a Poll could highlight how these manifest themselves for a wider group of owners?