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).
Memo reporting on vehicle performance, including fuel consumption, spark plugs, and steering.
| Identifier | ExFiles\Box 72\2\ scan0188 | |
| Date | 9th January 1926 | |
| 48770 X8992 RESTAURANT. OCTOBON. LE. CANADEL. PAR. LE. LAVANDOU. (VAR) FRANCE. 9.th Jan. 1926. MR. HIVES. from. F.{Mr Friese} DODD. The average petrol consumption on 7.EX. is. 13.1. M.P.G. oil 1163. M.P.G. With regard to the sparking plugs, I cleaned these after running, 1,723 miles. I have had no misfiring and except for no 6 cylinder plugs slightly damp, the others show no signs of over-oiling. The carbon being burnt of hard, and the centre porcelain quite clear. The steering is very good and quite free, and as yet I have not detected any signs of stiffness after long runs. The car is running satisfactorily and have no complaints. Yours. truly F.{Mr Friese} Dodd. | ||