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).
Reproduction of petrol quality by adding 10% paraffin and requesting tests on different petrol brands.
| Identifier | ExFiles\Box 20\6\ Scan046 | |
| Date | 4th March 1921 | |
| X985 EWT. for R.R.Inc. from Hs.{Lord Ernest Hives - Chair} Hsl/LG4.3.21. X985 RE. PETROL. We are trying to reproduce petrol similar in quality to the petrol which was tested whilst I was at Springfield. We find that we have to add 10% of paraffin in order to reproduce a similar distillation curve. The apparatus use in the Laboratory here is the same as is used at Springfield. It would be helpful if you would obtain samples of several different brands of petrol and test them and send us the results. For your information we attach herewith Distillation Curve of a low grade petrol with 10% paraffin added. HS.{Lord Ernest Hives - Chair} | ||