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).
Query regarding the correct oils to be used for a 3½ Litre Bentley chassis.
| Identifier | ExFiles\Box 3\4\ 04-page369 | |
| Date | 28th June 1933 | |
| Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} from Mx.{John H Maddocks - Chief Proving Officer} (485) ✓ Mx{John H Maddocks - Chief Proving Officer}13/T28.6.33. 3½ Litre Bentley. Will you please let me know what oils we should use in the engine, gear box, axle, steering box etc. on this chassis. LID{A. J. Lidsey} See me HS{Lord Ernest Hives - Chair} | ||