In article , "Brian Gaff (Sofa)"
writes
It depends how obvious it is I suppose, I'd say that when I was very young
and my father was alive some vehicles did not like different aged tyres on
the front inducing weird vibrations in the steering at certain speeds. Brian

I had a weird experience with my Jeep Cherokee when I put 2 new tyres on
the front. It wouldn't drop out the diff lock. I had to drive slowly to
the dealer who then explained that the way out of it was to put one new
tyre on each axle - or buy 2 more new tyres.
--
bert