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How much does the 2021 Lexus IS cost? With just two trim levels but three carryover powertrains, the price spread on the 2021 Lexus IS is pretty small.
- Lexus
- Robert Duffer
- Senior Editor
Oct 1, 2020 · Time to go 100 per cent propeller-head: Octane rating is an index of the knock resistance of a particular fuel compared to a laboratory standard kind of fuel called iso-octane. Which is actually 2,2,4 tri-methyl pentane - for those of you who remained awake for carbon chemistry in high school.
Jan 29, 2021 · If an engine runs well with 87 octane in your environment (e.g. temperature, altitude) and your timing is not being retarded, then it is the better choice. The Mazda SkyActiv engines are somewhat high compression and Mazda's recommendations are similar (87 OK, but 91 optimal for max performance).
Sep 7, 2015 · For example, let's say you decide to run race fuel: how much octane does your car need? Do you buy leaded or unleaded race fuel? Should you buy oxygenated race fuel or not?
How much does the 2021 Ford Mustang cost? Every 2021 Mustang has automatic emergency braking, even the base $28,350 EcoBoost coupe.
- Editorial Director
- Ford
- $27,205 - $70,300
An octane number beyond 100 can only be obtained by an extrapolated octane rating curve or utilizing octane enhancers such as tetra-ethyl lead with the iso-octane reference fuel [14].
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May 14, 2018 · In either case, knocking would affect the performance of the engine in terms of power or longevity, which is why fuels with better octane ratings are an absolute must.
