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tyre pressure for 66 reg XJ portfolio

1033 Views 2 Replies 3 Participants Last post by  Ian D
I just bought a 66 reg xj portfolio, tyre is 275/35/20R.
the marked pressure is 32psi, but the info panal showing: low speed 32psi, high speed 40psi. so what is the best for it ?
1 - 3 of 3 Posts
Why not go for 36.:?

Low speed is the best to go for, high speed is for over 100mph and how often you going to do that?
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