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).
Report page discussing oil flow and consumption based on road tests of Phantom and Silver Ghost models.
| Identifier | Morton\M18\ img082 | |
| Date | 26th June 1925 guessed | |
| contd :- -2- ...following curve supports this supposition and shows how the consumption on this particular Silver Ghost increases with an increase of the aggregate oil flow through the bearings. The oil flow was regulated by means of the pressure. The effect of discharge upon consumption is more easily appreciated by reference to some results of road tests made on both a Phantom and a Silver Ghost. These curves show how the miles per gallon decrease as the oil flow increases. It will be observed that the consumption on this base is nearly the same for each car. The small difference which does exist is in contd :- | ||