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superunleaded

Line breaks: super|unlead¦ed

Definition of superunleaded in English:

adjective

Denoting unleaded petrol with a higher octane rating than that of regular unleaded petrol, achieved by the addition of aromatic hydrocarbons.
Example sentences
  • The committee said benzene in superunleaded gasoline has been linked to childhood leukemia and cancer.

noun

[mass noun] Back to top  
Superunleaded petrol: many owners buy superunleaded because they believe it will enhance performance
More example sentences
  • Are there any better types of superunleaded to use (brands etc etc) or are they all much of a muchness?
  • I'd like to know why the superunleaded which my car takes is now 30 cents more than unleaded when it used to be only 20 cents.
  • But - on start up the engine feels a bit ‘flooded’ and rough - is this is because superunleaded is better suited to long runs and higher engine speeds?

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Word of the day orthoepy
Pronunciation: ôrˈTHōəpē
noun
the correct or accepted pronunciation of words