JAC S1 - Page 62

isrequired.
Checkengineoil
Itisnecessarytotestthequalityof
oilusedintheengine.Checktheoil
levelatleastonceamonthduring
normalservice.Theoillevelshould
becheckedmorefrequentlyintrav鄄
elingorwhendrivinginsevereenvi鄄
ronment.
Recommendedengineoil
1.Gasolineengine
Itisrecommendedtousethefuel-
saving SH, SG or SG1CD (API)
thickenedengineoil.
Checktheoillevel
Beforechecktheengineoil,warmup
theenginetonormalwatertempera鄄
tureandparkthevehicleonaflat
ground.Turnofftheengineandwait
forseveralminutes.Pullouttheoil
stick,wipeofftheoil,andinsertthe
oilstickagainandthenpullitouta鄄
gain.Recordthefinaloillevelonthe
stick.Thelevelshouldbebetween
thefull("F")andlow("L")positions.
Fillingoil
Iftheoillevelisclosetoorbelowthe
"L"mark,filloiltobringittothe"F"
mark.Tofilloil:
1.Openthecaponthefillingportby
Note:
音 SAE5W20isnotsuitablefor
thevehicle.
Maintenancebyvehicleowner
112
turningitanti-clockwise.
2.Checkthelevelafterfillingoil.
Neverfillitwithexcessiveoil.
3.Immediatelyclosethefillingport
capby turning it clockwise. The
amountofoilbetween"F"and"L"
marksisabout1liter.
Engineoilconsumption
Functionsofengineoil
Themainfunctionsofengineoilare
tolubricateandcooltheinternalof
theengine.
Consumptionprocessofengineoil
Theenginewillsurelyconsumeen鄄
gineoilduringnormaldriving.The
followingistheoilconsumptionby
engineundernormalconditions:
音 Theengineoilisusedtolubricate
thepiston,pistonringandcylinder.
Whenthepistonisatthebottomof
cylinder,afilmofgasolineisformed
intheupperpartofthecylinder.
Whengasolineissuckedintothe
combustionchamberbytheengine,
averypowerfulnegativepressure
willbeproduced.Duringcombus鄄
tion,thegasolineand engine oil
combustwiththeaidofhightemper鄄
aturecombustinggas.
音 Theviscosityandqualityofen鄄
gineoilaredirectlyrelatedtotheoil
consumption, engine speed and
drivingstatus.Highdrivingspeed
andfrequentaccelerationandde鄄
celerationwillincreasetheoilcon鄄
sumption.
Replaceengineoilandfilter
Replacetheengineoilandfilteras
perthemaintenanceschedule.Ifthe
statusofvehicleisinasevereenvi鄄
ronment,theserviceperiodofengine
oilandfiltershouldbeshortened.
Followingistherelevantprocedure
forengineoilandfilterreplacement:
1.Parkthevehicleonalevelground
andapplytheparkingbrake.Start
theenginetoallowittoreachthe
normalwatertemperature.Turnoff
theengineandsettheshiftleverat
reversegear (manualtransmission).
Theparkingbrakeisappliedcon鄄
currentlyatthistime.
2.Opentheenginecoverandun鄄
screwtheengineoilfillingportcap.
3.Gounderthevehicleandturnan鄄
ti-clockwiseandloosenthedrain
plugwithaspanner.Determinethe
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