Hi guys, what are you running your tyre pressures at, I went round mine and found they were at 24psi from the PO.
I took them up to 28psi and found it quite twitchy. I have dropped them to 26 but they still seem bouncy. Any thoughts?

 

What does the tire pressure tag on your door jam say to run?
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On my 2004 XJ8 the tire pressure(s) are displayed inside the gas filler door flap.

Downloading an X350/XJ8 owner's manual will provide you with basic information such as this. They are on this forum and elsewhere on the 'Interweb'.

 

235/50/R18 front 1.9bar
rear 2.1
very low indeed

 

20 inch rims are not very comfy
19 inch seem to be great for mix sport and comfy vave those on xj8
18 very comfy have those on xj8
17 very comfy have those on xj6 will only fit on early x350 with 320 disc and 288 rear

 

When I got the car it was at 23psi, petrol flap said 28psi but that was too twitchy, 26 is ok but a bit harsh. Might go back to 23.

 

On my car nothing is displayed inthe fuel filler cap. The following is from the workshop manual:



Being in Germany, for me the preesures for speeds above 160 km/h apply, and in Summer I keep my 19" wheel at 2.4 bar front and 2.5 bar rear, so 0.2 bar more than the recommendation. I do the same with my 18" wheels with winter tires, 0.2 bar above the recommendation.

Best regards,

Thomas

 

I run 32 to 33 psi. Whatever keeps the tread flat on the road.