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).
Summary of petrol consumption, oil consumption, and tyre mileage statistics.
| Identifier | ExFiles\Box 1\4\ B001_X 100a-page289 | |
| Date | 10th April 1933 guessed | |
| - 17 - Average Petrol Consumption - 12.47 M.P.G. Average Oil Consumption - 406.8 M.P.G. Tyre Mileage - Dunlop Buttress Tread. Front O.S. 12,058 Rear O.S. 6,183 Front N.S. 12,058 Rear N.S. 4,791 - mileage shortened by cut in tyre. Wakefield Special Aero Oil used throughout the mileage. - - - - - - - - - - - - G.W.H. | ||