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 the Vacuum Oil Company describing the properties of a lubricant that is technically a grease but has the qualities of a high-grade gear oil.
| Identifier | ExFiles\Box 40\4\ Scan332 | |
| Date | 28th April 1930 | |
| Form Gen 691-1m-9/28 AUTOMOTIVE LUBRICANTS DEPARTMENT. ENGINEERING DIVISION. VACUUM OIL COMPANY LTD. CAXTON HOUSE WESTMINSTER LONDON S.W.1. -3- While it is technically known as a grease owing to its content of metallic soap, from a lubrication standpoint, it is more of the nature of an exceptionally high grade gear oil having remarkably good lubricating properties, combined with the non-leaking character of a grease. We trust the above information will be of interest to Messrs. Rolls Royce Ltd. and should be glad to supply any further information on request. VACUUM OIL COMPANY, LTD. Automotive Lubricants Department O.J. Jones Chief Engineer Engineering Division OTJ/HR 28/4/30 | ||