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).
Experimenting with different oil grades (S.A.E. 30 and 10) for cold starting and resulting engine noise.
| Identifier | ExFiles\Box 173\2\ img218 | |
| Date | 27th February 1934 guessed | |
| New Capital Hotel IN THE CAPITAL CITY MODERN - FIREPROOF - EUROPEAN ON TAFT MEMORIAL HIGHWAY AND U.S. 60 CENTER OF SCENIC AND HISTORIC KENTUCKY Frankfort, Ky. RUDY H.{Arthur M. Hanbury - Head Complaints} SUCK MANAGER an expensive proposition of it does. Re Cold starting, I have been experimenting & with S.A.E. 30 oil B will start at about 20°F or 10 degrees of frost. Probably with S.A.E. 10 oil it would start at s above zero, but with 30 oil the timing gears make such a noise when the engine is hot that I have not had the heart to use anything thinner. KENTUCKY STATE CAPITOL BUILDING | ||