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 C.C. Wakefield & Co. regarding the suitability of mixing Castrol 'R' oil with other high-grade lubricants.
| Identifier | ExFiles\Box 32\3\ Scan044 | |
| Date | 14th October 1920 | |
| RESEARCH DEPARTMENT. X1583 C. C. Wakefield & Co, Limited. MANUFACTURERS of HIGH CLASS LUBRICANTS. GOVERNING DIRECTOR, SIR CHARLES WAKEFIELD, BART. MANAGING DIRECTOR, W.R. GRAHAM. LABORATORY: EAE/EMP. HSL/LG. Wakefield House, 30&32, Cheapside, London E.C.2. 14th Oct. 1920. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. RECEIVED 16 OCT 1920 Dear Sirs, For attention of Mr. E.{Mr Elliott - Chief Engineer} W. Hives. We have no hesitation in stating that Castrol "R" can be used conjointly with high grade lubricating oils suitable for Rolls-Royce cars without deleterious effects. It must not be assumed, however, that a stable homogeneous mixture will result by so doing, although a molecular mixture can be obtained when the car is running which can be regarded as a safe lubricant. We are, Yours faithfully, C. C. WAKEFIELD & CO., LIMITED. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} Evans. Chemist. | ||