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Smart Reasoning:

C&E

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Qaagi - Book of Why

Causes

Effects

therefore require higher octane fuelto preventpre - ignition

Higher compression engines require higher octane fuelto preventpre - ignition

that a higher compression ratio might require a higher octane fuelto preventpre - ignition

why most engines with a high compression ratio require a higher octane fuelto preventpre - ignition

that fuel with a higher octane rating helpsto preventpre - ignition

a hot plugcausingpre - ignition

to use a higher octane fuelto preventpre - ignition

to run higher octane fuelto preventpre - ignition

a higher octane fuel ( above what is necessaryto preventpre - ignition

using the higher octane fuel that 's NECESSARYto preventpre - ignition

A higher compression ratio requires higher octane fuelto preventpre - ignition

higher octane as requiredto preventpre - ignition

Higher octane is usedto preventpre - ignition

Well the purpose of higher octane fuel isto preventpre - ignition

therefore require higher - octane fuelsto preventpre - ignition

hot spots in the enginecausingpre - ignition

premium , which helpsprevent“ pre - ignition

It actually helpspreventpre ignition

This also helpspreventpre - ignition

decay ... helpspreventpre - ignition

a random hot spotscausingpre ignition

hot spots likelyto causepre - ignition

local hot spotsmay causepre - ignition

thus the need for higher octaneto preventpre - ignition

It is important to avoid hot spots in the combustion chambercould causepre - ignition

to use 91 or higher octaneto preventpre - ignition

the temperature rise of the compressed chargewill resultpre - ignition

an ideal temperature , low enoughto preventpre - ignition

A spark plug firing end temperature ... low enoughto preventpre - ignition

using gas that is higher in octanecan causepre - ignition

hot combustion chamber deposits(passive) caused bypre ignition

hot spots on the cylinder facecan causepre - ignition

The plug ... hot enoughto causepre - ignition

the engine ... lower octane fuelsmay causepre - ignition

My main concerns ... hot spotsmight createpre - ignition

hot spots on the piston headcausingpre - ignition

so that a hot spot startscausingpre - ignition

unless the engine needed the higher octaneto preventpre - ignition

hot spots in the combustion chamber , such as on a spark plug or exhaust valve , or on carbon deposits(passive) are caused bypre - ignition

Equinox 3.6L Premier AWD Higher octane fuel is requiredto preventpre - ignition

In Knock / DetonationResultingIn Knock / Detonation

Combustion detonation(passive) caused byCombustion detonation

to detonation / knocking and damageleadingto detonation / knocking and damage

to a detonation or knock eventleadsto a detonation or knock event

to detonation , which is also called knockleadsto detonation , which is also called knock

to detonation , if the circumstances are rightcan leadto detonation , if the circumstances are right

Detonation ... circular referencescausesDetonation ... circular references

to detonation ( otherwise known as knockingleadsto detonation ( otherwise known as knocking

serious engine damagecan ... causeserious engine damage

catostropic engine damagecan causecatostropic engine damage

detonation and the detonation is what causes the failurecausesdetonation and the detonation is what causes the failure

to engine knockingleadsto engine knocking

the severe engine knock(passive) triggered bythe severe engine knock

detonation which , in turn , can cause more pre - ignitioncan causedetonation which , in turn , can cause more pre - ignition

violent vibrations inside the engine just like detonation doescausesviolent vibrations inside the engine just like detonation does

plug failure and extensive engine damageto sparkplug failure and extensive engine damage

a loss of power or even engine damageresultinga loss of power or even engine damage

serious and expensive internal engine damagecould causeserious and expensive internal engine damage

catastrophic damage to the enginecan causecatastrophic damage to the engine

major damage to your enginecan causemajor damage to your engine

serious damage to your enginecan causeserious damage to your engine

mostly heat related damage where detonation tends to break partscausesmostly heat related damage where detonation tends to break parts

excessive cylinder pressure eventually leading to engine damagecould causeexcessive cylinder pressure eventually leading to engine damage

engine damaging knock(passive) caused byengine damaging knock

significant engine damage including perforation of the pistoncan causesignificant engine damage including perforation of the piston

the engine to ping Will reduce knock 136Will causethe engine to ping Will reduce knock 136

bad engine knock and may break the enginecausesbad engine knock and may break the engine

the possibility of super - knock(passive) caused bythe possibility of super - knock

what I thought was rod knockcausingwhat I thought was rod knock

a knocking noise from the engine(passive) caused bya knocking noise from the engine

Knock ... in which the fuel is ignited by a hot - spot in the cylinder instead of by the spark plug(passive) is caused byKnock ... in which the fuel is ignited by a hot - spot in the cylinder instead of by the spark plug

to detonation because it will cause the mixture to ignite while the piston is still moving upward on the compression cyclecan leadto detonation because it will cause the mixture to ignite while the piston is still moving upward on the compression cycle

extreme damage(passive) caused byextreme damage

Cracked spark plug porcelain(passive) has usually been caused byCracked spark plug porcelain

strong knockingcausesstrong knocking

engine vibration(passive) caused byengine vibration

A mild knock ( light tapping noise )(passive) caused byA mild knock ( light tapping noise )

The strange knocking noise(passive) is caused byThe strange knocking noise

to either spark plug or piston ring land failureleadingto either spark plug or piston ring land failure

occurring at the spark plug electrode gapwill resultoccurring at the spark plug electrode gap

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Smart Reasoning:

C&E

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