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).
Listing recommended oils for the Bentley M. Series.
| Identifier | ExFiles\Box 139\3\ scan0152 | |
| Date | 2nd April 1938 | |
| To NW.{N. Walker - Patents} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. Hs.{Lord Ernest Hives - Chair} c. By.{R.W. Bailey - Chief Engineer} 1164. RECOMMENDED OILS - BENTLEY M.{Mr Moon / Mr Moore} SERIES. We suggest the following in the Instruction Book re recommended oils:- ENGINE Use either Wakefield Castrol, Vacuum Mobiloil, Price's Motorine, Shell, or Duckham's Adcol first quality oil of viscosity 30. If it is found difficult to start the engine in cold weather use a viscosity 20 oil of one of the above companies. GEARBOX Use a viscosity 30 oil as above. WATER PUMP Vacuum Mobilgrease No.6. or Shell water pump grease. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||