Oil consumption data for car reference 3 CP 30.
| Identifier | ExFiles\Box 144\3\ scan0258 | |
| Date | 4th October 1937 | |
| CX. {Major Len W. Cox - Advertising Manager} RC {R. Childs} 8/L/4.10.37. Re: 3 CP 30 - Oil Consumption. - - - - - - - - - - - The sump of the above car was full at the speedo reading of 284. 899 1 qrt. 1086 1 qrt. 1602 1 qrt. 2203 1 qrt. 2318 1 qrt. 2827 2 qrts. 3304 1 qrt. 3504 1 qrt. 3713 1 qrt. [Stamp Text] PC OC 15 OCT 37 Rec'd Miles for month - 3429 to 2½ gallons of oil - 1372 m.p.g. BC.✓ | ||
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).