What tyre pressures are people running?

[Mittens247]

Seems that the trend is for manufacturers to recommend very high pressures (38 psi) to maximise fuel economy. This seem to make the ride a lot harder and less comfortable.

What tyre pressures are people using? On my previous car a Mazda 6 I ran 32 psi all round on smaller 17 inch wheels and it felt a lot more comfortable. I have been running 36 psi but I am tempted to drop them to 34 or less to see if things improve.

[Taxiboy]

What size of tyres do you have?

[Mittens247]

Running 235/45R18 XL Michelin primacy 4's.

[Taxiboy]

Same tyres I have. They recommend 38psi all round but I wouldn’t advise that. I’ve found way too much road noise and you will find too this will overinflate them. There’s a comfort recommendation of 33psi all round but i noticed my fuel consumption got worse. Try 34 on the fronts and 35 on the backs or just do 35 all round. I’m considering replacing mine with the 17s (215/55/17) from current SEL model. I’m in the car all day and road noise can be an issue with the 18s and also poor road surfaces the 18s aren’t great.

[Mittens247]

Had it at 35 psi all round for a few months and that seems about the best compromise. Still make sure I steer well clear of any pot holes or recessed drain grates. Better shocks required I think!

[Gazwould]

Can't beat dual rate dampers , special valving allows for maximum comfort but firms up when pressing on , didn't realise they were stock on the Stuttgart until I looked into
BILSTEIN B4 DampMatic® , I run 40 psi with no loss of comfort .


Koni ACTIVE are also dual rate .