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).
Cost and quality of different petrol suppliers for engine testing.
| Identifier | ExFiles\Box 20\4\ Scan016 | |
| Date | 27th January 1921 | |
| EP.{G. Eric Platford - Chief Quality Engineer} from Wd.{Mr Wood/Mr Whitehead} c. to Hs.{Lord Ernest Hives - Chair} c. to Hm.{Capt. W. Hallam - Head Repairs} c. to Hl. X. 976. Wd{Mr Wood/Mr Whitehead}8/NJ27.1.21. X.1386 RE PETROL. X.976 In view of the remarks in R's note R9/G24.1.21, you will probably consider the advisibility of employing "Mex" Motor Spirit, in lieu of "Shell" Motor Spirit, for testing chassis engines, seeing that the former is 2d. per gallon cheaper than the latter, but I shall be glad to hear from you with regard to this. I take advantage of this opportunity to point out that the British Petroleum Co.Ltd., supply their No.1 spirit and their No.3 spirit at prices respectively identical with the prices we pay for "Shell" motor Spirit and "Mex" spirit, therefore, if the quality of the British Petroleum Co's spirit is better than "Shell-Mex" spirit, we ought, in my opinion, to take advantage of it. Wd.{Mr Wood/Mr Whitehead} | ||