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).
The oil consumption figures for vehicle GWN 8.
| Identifier | ExFiles\Box 144\3\ scan0220 | |
| Date | 2nd June 1937 | |
| CX.{Major Len W. Cox - Advertising Manager} RC{R. Childs}4/L/2.6.37. [Stamp Text: CX{Major Len W. Cox - Advertising Manager} RECEIVED 3 JUN 1937] Re: GWN 8 - Oil Consumption. The sump of the above car was full at the speedo reading of 940. 1291 1 qrt. 1656 1 qrt. Miles for month - 716 to 2 quarts of oil - 1432 m.p.g. [Stamp Text: POST 3 JUN 1937 Received] RC.{R. Childs} ✓ | ||