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 test on unit U-7-S during a run to Sheffield.
| Identifier | ExFiles\Box 144\3\ scan0085 | |
| Date | 14th July 1936 | |
| To Rm.{William Robotham - Chief Engineer} X220 Hs{Lord Ernest Hives - Chair}/CL.5/KW.14.7.36. 18-G-IV - Oil Consumption. Unit U-7-S. Car run to Sheffield by Lovesey. Standard piston rings. Total mileage to date 6367. This run with breather pipe turned upwards. No breather from rocker cover to air silencer on this unit. Miles run 85. Oil used 1 pint. Oil consumption 680 M.P.G. Hs{Lord Ernest Hives - Chair}/C.Lee. | ||