Automotive Dictionary: Heptane

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Automotive Dictionary: Heptane


Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
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Heptane


An hydrocarbon fuel (C7 H)6) with poor anti-knock qualities, which, when mixed with another fuel octane (C8 H18), permits evaluation of the octane rating of any fuel on test, this value being the percentage of octane in an octane-heptane mixture which is found to give the same performance on test as the unknown fuel.
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