Old Handbook tyre pressures
Old Handbook tyre pressures
(OP)
Tyres radial 155x14 or 165x14 on 4J / 5J or 4.5 wires
Pressure 22F24R add 6psi for sustained over 90mph and 2psi for loaded boot.
Vehicle weight 1312Kg 50;50F/R RWD
Due to tyre availability most owners use 175 or 185 on original wheels or 195x60x15 Load index 88 on 5.5J or 205x65x15 on 6J or 205x50x17 on 7J
Should the handbook pressures be revised?
Pressure 22F24R add 6psi for sustained over 90mph and 2psi for loaded boot.
Vehicle weight 1312Kg 50;50F/R RWD
Due to tyre availability most owners use 175 or 185 on original wheels or 195x60x15 Load index 88 on 5.5J or 205x65x15 on 6J or 205x50x17 on 7J
Should the handbook pressures be revised?





RE: Old Handbook tyre pressures
So an old handbook doesn't benefit from the learning that has taken place.
For one, there have been cases where the tire bead has unseated in cornering, so now there is a minimum inflation pressure that is used. There isn't complete agreement as to what that value is, but I prefer the higher value - 26 psi.
This also satisfies my need to increase the tire load capacity.
Hope this helps.