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).
Advantages of a dashboard-mounted petrol level indicator over the existing back-tank gauge.
| Identifier | WestWitteringFiles\S\March1928-May1928\ Scan163 | |
| Date | 1st May 1928 | |
| To R.{Sir Henry Royce} from hs.{Lord Ernest Hives - Chair} c. to BJ. Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} c. to EY. ORIGINAL Hs{Lord Ernest Hives - Chair}2/LGS. 5. 28. PETROL LEVEL INDICATOR. X4038 There are certain inherent advantages with the petrol level indicator reading from the instrument board. On the majority of cars, the gauge reading on the back tank is rapidly becoming obsolete. The advantages we have found have been as follows :- (1) If a car is fitted with a RR. sports body it is impossible to read the present gauge. (2) With a luggage box built up close against the body, which we believe will become increasingly popular, it is very difficult to read the present gauge. (3) The present gauge cannot be seen at night unless a xxx torch is carried. (4) With the present gauge it is not possible to see how much petrol is left when the car is running, therefore on long journeys one relies entirely on the reserve. We consider that with a satisfactory level indicator on the dashboard, the necessity for the reserve compartment is not so important. We have now run several petrol level indicators fitted on the dashboard for 10,000 miles. We find, when they are fitted up correctly, they are quite reliable. contd :- | ||