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).
Record of oil consumption for car 3 CP 30, listing mileage readings against oil top-ups over a three-month period.
| Identifier | ExFiles\Box 144\3\ scan0308 | |
| Date | 9th August 1938 | |
| CX.{Major Len W. Cox - Advertising Manager} RC{R. Childs}1/L/9.8.38. Re: 3 CP 30 - Oil Consumption. - - - - - - - - - - The sump of the above car was full at the speedo reading of 12469. 12976 2 qrts. 14106 2 qrts. Taken over a period of 14479 1 qrt. 15124 1 pt. 3 months. 15812 2 qrts. 16278 1 qrt. 16910 1 qrt. 17298 1 qrt. POST 10 AUG Rec'd Miles for period - 4829 to 10 quarts 1 pint of oil - 1832 m.p.g. RC.{R. Childs}✓ | ||