Is it advisable to have my tyres below the recommended PSI?
I've just taken the plunge and bought 4 Michelin Cross Climates for my 2011 Mercedes E250 CDI Estate.Tyre size is 225/55 R16 99W. Mercedes Benz recommends 38PSI all round unladen, more when 5 up with luggage. I see that you regularly suggest running at lower pressures would you recommend the same for me and, if so, how is it likely to affect tyre wear as Mercedes suggested pressures would indicate I'd be running expensive tyres under-inflated?
Asked on 3 May 2017 by Lee1477
Answered by
Honest John
I ran 215/55 R17s at 31PSI cold pressures all round in a Honda HR-V. Excellent comfort. Low noise. Good steering feel. No adverse effects of economy or wear. Probably not as low as that in the heavier E250 CDI, but cold pressures of 35 all round should be okay. As soon as they heat up they'll be 38 anyway.
Similar questions
I have read with interest your recommendation that tyre pressures be dropped by 3psi for comfort. Yet I remember when you recommended that for long distance, high speed, well loaded travel in a hot climate...
Do I set the tyre pressures to the manufactures pressures regardless of the ambient temperature. Recently the heatwave has raised the tyres when cold from 33/30 to 37/34. If I hadn’t let some air out they...
I’ve been told to use gas in my tyres as it would mean a smoother ride and I wouldn’t need to put gas in them as often. Is this true or is the garage trying to sell me something that I don’t need.
Related models
Huge and useful boot space. Well-built and solid interior. Comfortable long-distance cruiser with excellent diesels.

