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).
Excessive oil consumption in various car models, with a suggestion to order new scraper rings.
| Identifier | ExFiles\Box 144\3\ scan0054 | |
| Date | 5th June 1936 | |
| X1220 Cx{Major Len W. Cox - Advertising Manager}5/KW5.6.36. S/W. Rm.{William Robotham - Chief Engineer} c. to Sg{Arthur F. Sidgreaves - MD} c. " Wor.{Arthur Wormald - General Works Manager} c. " E.{Mr Elliott - Chief Engineer} c. " EP.{G. Eric Platford - Chief Quality Engineer} Matthews. - Please return for file. We should order immediately some special turned scraper rings for the 20/25. (3 sets off). You may be interested to know that the oil consumption of our 25/30 h.p. Trials Car GUL-82 is, I am informed by RC{R. Childs}, averaging only between 400-500 m.p.g. Yesterday JLE{J. Lee Evans - Chassis Test Manager} reported much the same result to me with cars on test. It would be interesting to us to know the reason of this apparently excessive consumption of oil, seeing that the P.III is averaging II00, and the 20/25's have in the past averaged a very much higher figure than the one reported above, namely, in the case of GBJ-18 I000 m.p.g. and GBJ-16 about 700. The Bentleys appear to be doing about II00. Cx.{Major Len W. Cox - Advertising Manager} [Illegible signature] | ||