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 for car B 3 GA, detailing quantities added at specific mileage readings and the resulting miles per gallon calculation.
| Identifier | ExFiles\Box 144\3\ scan0173 | |
| Date | 2nd March 1937 | |
| CK.{Mr Clark} [handwritten] RC{R. Childs}4/L/2.3.37. B 3 GA - Oil Consumption. - - - - - - - The sump of the above car was full at the speedo reading of 29660. 30071 1 qrt. 30458 1 qrt. 30576 1 qrt. 30779 1 qrt. 31117 3 pts. Miles for month - 1457 to 1 gall 3 pts. of oil - 1056 m.p.g. [Stamp: POST. 3 MAR 37 Received.] RC.{R. Childs}✓ [handwritten] | ||