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).
The oil consumption of a 25/30 HP engine, vehicle 22-G-V, after fitting a new cylinder block and 'L' shaped rings.
| Identifier | ExFiles\Box 144\3\ scan0128 | |
| Date | 15th October 1936 | |
| X1226 To Sg.{Arthur F. Sidgreaves - MD} & Wor.{Arthur Wormald - General Works Manager} c. to H.{Arthur M. Hanbury - Head Complaints} c. to By.{R.W. Bailey - Chief Engineer} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to Hd.{Mr Hayward/Mr Huddy} c. to Br.{T. E. Bellringer - Repair Manager} Ha/Rm.{William Robotham - Chief Engineer}11/KW.15.10.36. Oil Consumption of the 25/30 HP. We have received the following report regarding 22-G-V, now running with the 'L' shaped rings in France :- "This car has now covered 3,189 miles since fitting the new cylinder block and pistons with one 'L' ring in the second groove. The oil consumption is now good and has been as follows :- During first 664 miles - 590 M.P.G. " next 634 " - 596 " " " 869 " - 695 " " " 404 " - 1292 " " " 618 " - 1978 " The average oil consumption for the 3,189 miles was 785 M.P.G., and petrol consumption was 12.7 M.P.G. Ha/Rm.{William Robotham - Chief Engineer} | ||