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).
Comparing proposed Shell oils and greases against current production lubricants for various components.
| Identifier | ExFiles\Box 145\3\ scan0080 | |
| Date | 22th January 1937 | |
| To Hl/Mr.Aspley. from Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} 1230 Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}12/AP.22.1.37. For your information the grades of oil and greases we wish to put forward for your consideration are as follows:- Steering box - Shell Spirax. Universal joints - Shell Retinax. Hydraulic shock absorbers. - Shell Shock Absorber Light. Water Pump Brg. and gland - Shell W.P.Grease. Wheel Hub Shells - Shell R.B. Grease. Will you please compare these with our present production oils and greases:- Amber B. - Steering Box. Mobilgrease No.2. - Universal joints. Mobiloil Arctic - Hydraulic dampers. Duckhams Grease - Water Pump gland and wheel bearings. Rm{William Robotham - Chief Engineer} /FD.{Frank Dodd - Bodies} | ||