My neighbour (nice gent, mid-seventies) is forever inflating his tyres. I enquired why he had to do it so often and he assures me, that "it is normal for the tyres on this type of car to loose 2psi every 24 hours; it says so in the book". This does not sound right to me, I think he may have kerbed the wheels and needs new wheels, tyres or both. What advice can I pass on to him?