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).
Letter from a customer querying the recommended antifreeze due to corrosion concerns with ethylene glycol compared to glycerine.
| Identifier | ExFiles\Box 88\1\ scan0274 | |
| Date | 5th November 1936 | |
| [Internal Notes] [Top Left] Steadman Bently Motors 1931 Ltd Dey [Top Right] Please draught a suitable reply & let me see it- Rm{William Robotham - Chief Engineer} [Customer Letter] 51 Charlotte Road Birmingham 15 Dear Sirs I have recently bought one of your cars and have to keep it in an unheated shed. I see P.104 of the instruction book advises the use of trimethylene glycol or Ethylene glycol, but not glycerine, as an anti-freeze. I know from experiments in which I have collaborated that without a corrosion inhibitor, ethylene glycol (which is more easily obtained than trimethylene glycol) corrodes ordinary solder rapidly, either alone or with water. Glycerine on the other hand I think does not do so. | ||