Abstract
THE observations made by Mr. Rowell that deposits in an engine after running on ethyl petrol are subject to considerable variation in quantity and kind are certainly true. This is indicated by the two analyses given in Tables IV. and V., the first made in Great Britain and the second in the United States. Naturally, the lead content would vary with engine conditions and would appear less, for example, with a high degree of carbonisation. There is also no significance between the amount of lead used and found respectively. Thus, the amount of final lead deposits from cars that have actually run 40,000 miles on ethyl petrol would bear only a small proportion to the 12 lb. of lead consumed, whilst with a car run for an hour on ethyl petrol the proportion would doubtless be higher.
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MARDLES, E. Lead Tetraethyl in Internal Combustion Engines. Nature 121, 571 (1928). https://doi.org/10.1038/121571a0
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DOI: https://doi.org/10.1038/121571a0
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