In Karl Ludvigsen's book "Classic Grand Prix Cars" he writes that the upgraded Maserati 4CL (the 4CLT from 1947) "had a suffer and lighter tubular frame that also served as an oil reservoir."
Does anyone know exactly how the tubular frame served as an oil reservoir?
Did the frame functioning as an oil reservoir carry over into the all-new frame of the 4CLT/48 (San Remo)?
I have the book by Christian Bertschi on the Maserati 4CLT chassis 1600 but this doesn't mention much about the interim car between the 4CL and the 4CLT/48.
Thanks, Jennie Mowbray