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).
Procedure for measuring oil consumption in trials cars.
| Identifier | ExFiles\Box 144\3\ scan0083 | |
| Date | 13th July 1936 | |
| X220 W/S - Cx.{Major Len W. Cox - Advertising Manager} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/KW.13.7.36. Trials Car Oil Consumption. Cx.{Major Len W. Cox - Advertising Manager}11/KW.9.7.36. Our main interest in these cars centres round the rate at which the oil consumption improves. If therefore you could arrange that at, say, every 500 miles the oil is completely drained from the crankcase and an exact measurement taken of the oil remaining in the sump, together with the amount added, the figures would be of considerable value to us. It is possible that GUL-82 is now doing 1,000 M.P.G., though its average since it started life may be only 650 M.P.G. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||