Record of oil consumption for car 3-AZ-22, detailing mileage and oil top-ups.
| Identifier | ExFiles\Box 144\3\ scan0164 | |
| Date | 2nd February 1937 | |
| CX {Major Len W. Cox - Advertising Manager} RC {R. Childs} 1/L/2.2.37. 3-AZ-22 - - Oil Consumption. The sump of the above car was full at the speedo reading of 10519. 10937 1 qrt. 11035 1 qrt. 11353 1 qrt. 11787 1 qrt. 12092 1 qrt. Miles for month - 1573 to 1 gall 1 qrt of oil - 1256 m.p.g. Received. Consumption for previous month - 1510.8 m.p.g. PO RC. {R. Childs} ✓ | ||
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).