From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Oil consumption for car 3 CP 30 during the month of November.
| Identifier | ExFiles\Box 144\3\ scan0293 | |
| Date | 4th January 1938 | |
| CX.{Major Len W. Cox - Advertising Manager} 1220 November. RC{R. Childs}4/L/4.1.38. Re: 3 CP 30 - Oil Consumption. - - - - - - - - The sump of the above car was full at the speedo reading of 5038. 5347 1 qrt. 5800 1 qrt. 5813 1 qrt. 6586 1 qrt. 7109 1 qrt. 7518 1 qrt. 7596 1 qrt. Miles for month - 2558 to 7 quarts of oil - 1460 m.p.g. RC.{R. Childs}✓ POST JAN 1938 6 IX Received. | ||