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 whether the standardising spark plugs for PIII, 20/25 and big bore Bentley models are compatible with Ethyl fuel.
| Identifier | ExFiles\Box 150\1\ scan0111 | |
| Date | 21th May 1936 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} WST Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}5/HR.21.5.36. Are the plugs we are standardising on the P III, 20/25's and big bore Bentley Ethyl proof? Rm{William Robotham - Chief Engineer}- re ETHYL SPIRITS ON BENTLEY CARS. We attach hereto copy of H15/MD.18.5.36. and of St.5/MD.18.5.36. As we think that the position should be cleared up, particularly in regard to the possible effect of Ethyl on sparking plugs which appears to be widely remarked upon, we shall be glad to have your comments. Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}5/BJ | ||