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).
Simplifying lubricant recommendations for the Bentley 'M' Series.
| Identifier | ExFiles\Box 139\3\ scan0153 | |
| Date | 2nd May 1938 | |
| 1164 To NW.{N. Walker - Patents} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. By.{R.W. Bailey - Chief Engineer} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}11/MH.{M. Huckerby}2.5.38. BENTLEY 'M' SERIES LUBRICANTS. In addition to Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}4/AP. 2.4.38 we can further simplify the recommendations. Shock absorbers "Use a viscosity 20 oil as above". The use of an SAE.30 oil in the Bijur tank we find does not affect the total amount or the relative proportions of the separate feeds. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||