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Qaagi - Book of Why

Causes

Effects

Failure to replace a faulty PCV valvemay resultin oil sludge build - up within the engine

unexpected problemscausesludge to build up in the engine 's oil system

fully synthetic motor oilsleadto engine sludge issues

Poor maintenancecan causesludge accumulation inside the engine

have foundresultsin sludge in the engine over time

other engine oils like wax , sulphur and other contaminantsleadsto the building of sludge in engine

fewer impurities ... other engine oils like wax , sulphur and other contaminantsleadsto the building of sludge in engine

many factorscauseformation of sludge in the engine

old and dirty oilmay causebuild - up of sludge in the engine

Bad fuel and excessive car idlingcan also causeengine sludge in cars

anythingdesignedto break down the sludge in the engine

the oil mixed with the coolantcausedsludge build up in the engine

fewer contaminants ... Car Craftleadsto less sludge in the engine

moisturecausesoil sludge in the engine

the stuffcausesengine sludge in suspension

the filtercan causesludge build up in your engine

Your oil will get dirtier and dirtiercausinga build up of sludge in your engine

by inadequate or infrequent oil(passive) was caused byengine sludge build - up

that you do n't mix these with other types as thiscan causea sludge to form in the engine

In additioncausedsludge to build up in the engine

a leakcausedsludge to build up in the engine

frequently enoughwill causea sludge build up in the engine

Broken / leaky PCV systemwill causesludge inside the engine

The continued use of poor quality motor oilswill causethe build - up of engine sludge

vehicle ... mechanicdiscoveredsludge inside the engine

mixing brandscausessludge to form in the engine

mechanicdiscoveredsludge inside the engine

the problemwas causeddue to engine sludge

air ... the crankcasewill ... causea buildup of engine sludge

the sludge in the oil pancausedsludge to enter the engine

idlingmay causesludge buildup in engine

Avoid prolonged idlingmay causesludge buildup in engine

many similar problems due to poor designcausesa buildup of sludge in engine

a combination of heat , friction , water , dirt , unburned fuel and other contaminants causing the oil to oxidize(passive) is caused byEngine sludge

by a lack of regular oil changes(passive) is caused byengine sludge

infrequent oil changescausingengine sludge

a defect ... or failure of the enginecausesengine sludge

Over timecausessludge to build up inside the engine

the moisture ... the enginecausessludge in the engine

where oil changes were neglectedcausingengine sludge

in a variety of complicationsmight resultin a variety of complications

failurescausingfailures

in all kinds of difficultiescan resultin all kinds of difficulties

the timing chain to breakcausedthe timing chain to break

in you needing a costly completeresultingin you needing a costly complete

problemswill causeproblems

problemscan causeproblems

problemswill causeproblems

a decrease in engine performance and reduced fuel efficiencycan causea decrease in engine performance and reduced fuel efficiency

a decrease in engine performancecan causea decrease in engine performance

the replacementpromptedthe replacement

a significant loss in powercan causea significant loss in power

to engine failureledto engine failure

a variety of difficultiescan causea variety of difficulties

a significant loss in power , poor oil pressure , an increase in lube usage , overheating under load , blow - by , and dirty exhaust smokecan causea significant loss in power , poor oil pressure , an increase in lube usage , overheating under load , blow - by , and dirty exhaust smoke

Major Engine TroublesCan CauseMajor Engine Troubles

mechanical failure(passive) caused bymechanical failure

mechanical failure(passive) caused bymechanical failure

to increased deposit formation , reduced oil flow and premature engine failurecan leadto increased deposit formation , reduced oil flow and premature engine failure

this leakis causingthis leak

problemsmay causeproblems

problemscan causeproblems

clogging of enginecauseclogging of engine

the noise(passive) is caused bythe noise

engine failurecausedengine failure

engine failurecausedengine failure

to increased deposit formationcan leadto increased deposit formation

to reduced gas mileageleadingto reduced gas mileage

to heating inefficiencyleadsto heating inefficiency

the engine to diecausingthe engine to die

the problem(passive) was causedthe problem

premature damage to engine componentscan causepremature damage to engine components

it to blow outcausingit to blow out

These things(passive) can actually be caused byThese things

the springcan causethe spring

second failurecausingsecond failure

the spring to stop workingcan causethe spring to stop working

engine damage in a car with as little as 15,000 miles on the odometercan causeengine damage in a car with as little as 15,000 miles on the odometer

costly problemscan causecostly problems

specificallydesignedspecifically

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Smart Reasoning:

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