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 for car GHO 50 over a three month period.
| Identifier | ExFiles\Box 144\3\ scan0310 | |
| Date | 9th August 1938 | |
| CX.{Major Len W. Cox - Advertising Manager} Re: GHO 50 - Oil Consumption. ------------------------- The sump of the above car was full at the speedo reading of 8418. 9112 1 qrt. Taken over a period 9626 1 qrt. of 3 months. 9829 1 qrt. 10643 3 pts. Engine decarbonised during 11244 1 pt. this period. 11850 2 qrts. 12153 2 qrts. No. of miles - 6120 to 4 galls. 12379 1 qrt. of oil - 1530 m.p.g. 12895 2 qrts. 13358 1 qrt. 13661 1 qrt. 13912 1 qrt. 14538 1 qrt. RC.{R. Childs}✓ [Postmark stamp: POST 10 AUG] | ||