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).
Comparative oil temperature and consumption tests for 'V' series and 40/50 HP cars.
| Identifier | Morton\M3.1\ img009 | |
| Date | 1st April 1925 | |
| R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}1/LG20.4.25. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. BJ. c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} S E C R E T. EAC. 'V' SERIES - OIL TEMPERATURE. We have carried out comparative tests on the road with a 'V' series car and a standard 40/50 HP. car. The maximum oil temperature was 70°C on the 'V' series, and 55°C on the 40/50 HP. To obtain this temperature the cars were run on the gears. We have carried out tests on the bench measuring the consumption at different oil temperatures but we have not been able to measure that increase in oil temperature increases the consumption, as a matter of fact, the engine consumed less oil when it was hot. This may possibly be due to the oil pressure being lower. Hs.{Lord Ernest Hives - Chair} [Handwritten notes:] [Top right corner:] V SOAP, + 24 [Next to title:] X8980 | ||