Peterbilt 389 2017 - Page 206

DRIVINGTIPSANDTECHNIQUES
Maintenancefactorsaffectingfuel
consumption:
•airand/orfuellterspartially
clogged
•enginevalvesoutofadjustment
•injectionpumpimproperly
synchronized
•injectionnozzlesdefectiveor
uncalibrated
•improperlyinatedtires
•wheelbearingsimproperly
adjusted
•clutchimproperlyadjustedorworn
(slipping)
•fuelleaks
DrivingHabits
Wrongdrivinghabitsmustbe
correctedandtherecommendations
oneconomicdrivingshouldbe
followed.
Drivingfactorsaffectingfuel
consumption:
•excessivespeedandunnecessary
fastacceleration
•longperiodsofidling
•drivingwithfootrestingonthe
(manualtransmission)clutch
pedal
GeneralCondition
Otherfactorsaffectingfuel
consumptionarerelatedtoloads
andtypeofroadsonwhichthevehicle
operates.Itisnotalwayspossibleto
choosethemostadequateroad,but
itmustbekeptinmindthattheideal
roadistheonethatallowsasteady
speedinhighgear,withoutrequiring
frequentbrakingandacceleration.
Thefollowinggeneralconditions
canaffectfuelconsumption:
•overload
•unbalancedload
•veryhighload
•inadequateroads
•trafcconditions
4-48Y53-6076-1B1(03/17)
4
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