EFFECTS OF SULPHUR CONTENT OF DIESEL FUEL A PROPOS the
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letter from R. J. Ginn, M.B.E., " published in your issue dated January 27, I am surprised to observe the sweeping manner in which he dismisses all the laboratory data that have been collated in both this country and the United States, on the influence of the sulphur content of Diesel fuel upon maintenance costs. Whilst his statements may be true for oil engines operating under very mild conditions, I have found from recent experience that under heavy duty (such as experienced in agricultural tractors as a
general rule) the sticking of both piston-rings and valves, together with a large amount of sludging, is often directly attributable to the sulphur present in the fuel. However, these troubles have been remedied successfully by the use of an engine oil containing special chemicals that counteract the derogatory effects of the sulphur.
Personally, I view with alarm the high sulphur content of the Diesel fuel at present being imported into this country, and feel that the laboratory results have, been amply confirmed by operators' " unchallengeable evidence," indicating only one remedy.
London; W.I. N. F. BitioN,
M.Se.Tech., B.Sc., A.F.Inst.P. (For the Vigzol Oil Co., Ltd.)