oil for ford

[bigfooteriam]

my brother is wondering what kind of engine oil to put in his new to him motorhome. it is a 1993 ford 450 with the 460 motor gas. he has heard numerous suggestions but they all vary in the weights. does anyone know for sure?
thanking you in advance.

[donn0128]

Any of the quality name brand drno oils are acceptable. I am partial to Casteroil, but thats just me