Another viewpoint if my calcs hold up....
If you are within 1.5mm of wear bars you may well have just 3mm. I assume you would change at 2mm anyway so swapping now would only waste 1mm. The useable tread of a tyre is mostly about 6mm so you would only be losing 17% of the tyre cost by getting new now.
I guess a decent pair is about £140 for the Berlingo so the cost of this early swap is just £24. For me that's a bargain for the extra safety of a fully loaded vehicle on a wet autoroute.
The other factor is that this trip could wipe close to another 1mm off the tread so by the latter stages you will be down close to a minimum.
Last edited by: Fenlander on Sun 21 Jul 13 at 10:11
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