Thanks for the help, Made a slight error the Mondeo psi's, 41 not 45 when loaded, I have had many cars that have much higher pressure with 3+ people and luggage, it's always more on the rear than the front though as in the Mondeo's 31 all round, then with a load it's 35 front and as I said 41 rear. It seems the RX has the same pressure regardless of the load on board, just really wanted my mind put at rest that there wasn't an ommision in the manual.
Cheers, Roger.