i have just bought a bargain 2.9 diesel sedona- 1yr old demo with 17 miles on the clock. the owners book states that the trye pressures are 36psi all round but does not mention loads, towing ect.have contacted dealer who said" if it doesn't feel right blow them up a bit". also the book states that you must wait for glow plug lights to go off before starting although dealer states its a modern engine and you can just start it straight off. anyone got one and knows whats what as i dont trust the dealer advice 1 bit- cheers