All season tyres - do I need to change all four wheels?

In order to find all season tyres my local tyre supplier has suggested using a tyre size (235/55 18) which is slightly different from standard (225/60 18 Dunlop Grantrek M&S) on my Honda CR-V. The plan would be to replace one axle and then the other as they wear out. Is this a good idea?

Asked on 11 August 2016 by Walker-Paddler

Answered by Honest John
Michelin now does Cross Climates in 235/60 R18 which will probably be okay (235/60 R18 is Freelander, Evoque size). But they need to be on all four wheels at once. The type of automatic 4WD system the CR-V has will detect any disparity in tyres sizes front to back as slippage and will wear out its 4WD system. So the advice by your tyre fitter was bad advice.
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