Gasoline Gasoline has gone through many changes in the last couple of decades, both for efficiency and for environmental considerations. During the early 20th Century, the oil companies were producing gun as a transparent distillate from petroleum, but the automotive engine was rapidly be improved and required a suitable fuel. Engines were modified to travel rapidly play on kerosene, however kerosene-fueled engines would “knock” and crack the piston chamber sharpen and pistons. This then led to the long search for antiknock agents, culminating in tetra ethyl lead story.
Typical mid-1920’s gasoline was 40-60 octane. The mid-fifties aphorism the start of the increase of the compression ratio, requiring higher octane fuels. Octane ratings, lead levels, and dehydration pressure increased, whereas sulfur content decreased. Minor improvements were do to gasoline formulations to improve yields and octane until the 1970s – when unleaded fuels were introduced to protect the let go catalys...If you ask to get a full essay, order it on our website:
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