Denoting unleaded petrol with a higher octane rating than that of regular unleaded petrol, achieved by the addition of aromatic hydrocarbons.
（通过加入芳烃而比一般无铅汽油含辛烷率高的无铅汽油）超级无铅的
Example sentencesExamples
The committee said benzene in superunleaded gasoline has been linked to childhood leukemia and cancer.
nounˌsuːpə(r)ʌnˈlɛdɪd
mass noun
Superunleaded petrol.
many owners buy superunleaded because they believe it will enhance performance
Example sentencesExamples
Just wanted to get a general idea of how much everyone is paying for superunleaded?
We used superunleaded a couple of times in our car just to see what happened, the extra cost was only £4 / 5 for our 120 litre tank so not so noticeable.
Are there any better types of superunleaded to use (brands etc etc) or are they all much of a muchness?
Also understand you WILL have to run superunleaded with that much compression.
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.
I have been running my car on unleaded, however it can be run on superunleaded, now I know it's more expensive, though I'm fantasy bargaining that there may be an increase in performance dictating the need to use less throttle and hence more mpg.
I shudder to think that I shall have to run this on premium unleaded, but if I am to avoid additives in the superunleaded, what is the alternative?
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?