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 and petrol consumption over 2,500 miles.
| Identifier | ExFiles\Box 123\4\ scan0261 | |
| Date | 25th June 1936 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X1042 EP.{G. Eric Platford - Chief Quality Engineer}20/25.6.36. 18-G-IV. Oil consumption over 2,500 miles works out at average 460 m.p.g. Checks show consistant throughout over 4 long runs - varies 480 - 440 - 450 - 460. Petrol consumption average 15.7 m.p.g. EP.{G. Eric Platford - Chief Quality Engineer} | ||