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 Chevrolet consumption test results.
| Identifier | ExFiles\Box 144\3\ scan0119 | |
| Date | 7th October 1936 | |
| To Rm.{William Robotham - Chief Engineer} X1220 Hs{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies}8/KW.7.10.36. Chevrolet Consumption Tests carried out on 30.7.36. Average speed 40.9 M.P.H. Petrol consumption 12.5 M.P.G. Oil consumption 3,600 M.P.G. Hs{Lord Ernest Hives - Chair}/F.Dodd. | ||