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).
Oil consumption figures for three trials cars over the last month.
| Identifier | ExFiles\Box 72\1\ scan0038 | |
| Date | 11th July 1925 | |
| X8980 COPY. TO - P.N. from Bk.{A. Birkett - Commercial Manager} c/Bk{A. Birkett - Commercial Manager}2/CM11.7.25. Re - Oil Consumption - Trials Cars. Oil Consumption for the last month is as follows :- 101-MC., Barker Landaulet 650 miles 3 pints = 1734 m.p.g. 29-MC., " Open 3274 " 7 " = 3916 " 103-MC., " " 1392 " 6 " = 1856 " C/Bk{A. Birkett - Commercial Manager} | ||