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).
Repeat oil consumption test run for a 21-G-IV C-16 Unit Standard Engine.
| Identifier | ExFiles\Box 144\3\ scan0066 | |
| Date | 30th June 1936 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/WB.{Mr Brazier/Mr Bell}17/JH.30.6.36. 21-G-IV - C-16 Unit Standard Engine. A repeat oil consumption run Derby - Oxford and return. Miles run 185 Average water Temp. 30°C. Average speed 44.4 m.p.h. " Oil " 76°C. Oil used 5.75 pts. " air " 185°C. Oil cons. 257.5 m.p.g. Average Oil press. 26 lbs/sqin. Total running on road to date 676 miles. Petrol cons. 12.75 m.p.g. Hs{Lord Ernest Hives - Chair}/W. Brazier. | ||