To 'BM' (re getting some new CrossClimate tyres) as regards using the 'correct' pressure: Reading the blimmin manual!

or check the plate on the drivers side door area near the lock.

Its only ever worth lowering tyre pressures (and only a bit - say 2psi) for use of tyres (generally) in heavy snow to get better grip - I would've thought that tyres that are specifically designed to work in such conditions (even if they are all-season types) wouldn't need to do so, but again, the pressures are given in the manual for each size. Facepalm time!

Edited by Engineer Andy on 27/01/2018 at 15:21

Also on the Fiesta, check that the dealer has removed the transport blocks from the suspension. They prevent the suspension moving too much whilst the car is being transported from the factory and are sometimes missed in the pre-delivery work.

Edited by Keith Nason on 27/01/2018 at 21:54