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 vehicle 3-AZ-22, detailing mileage and oil added.
| Identifier | ExFiles\Box 144\3\ scan0245 | |
| Date | 5th August 1937 | |
| CX.{Major Len W. Cox - Advertising Manager} RC{R. Childs}3/L/5.8.37. 3-AZ-22 - Oil Consumption. - - - - - - - - - - - - The sump of the above car was full at the speedo reading of 20276. 20995 1 qrt. 21436 1 qrt. 21867 1 qrt. Miles for month - 1591 to 3 quarts of oil - 2120 m.p.g. [Stamp: POST OFFICE RECEIVED AUG 11] RC.{R. Childs}✓ | ||