 Nyorai kupfuurira kweiyi ndima - Pakutanga, NASCAR yakaratidza kuti yaizochinja kuenda kumoto unopinza mafuta pakati pemwaka wa2011. Pakupedzisira vakasarudza kunonoka kuchinja kwegore rimwe chete. Kutanga mumwaka wa2012 NASCAR Sprint Cup Series, carburetors yakatsiviwa zviri pamutemo nejekiseni remafuta - zvichiita kuti tekinoroji ive yepamutemo mushure memakore 55 ekuva kusiri pamutemo. Mujaho wokutanga muNASCAR Sprint Cup Series nhoroondo kushandisa mafuta jekiseni aiva 2012 achimhanyawe Daytona 500 uyo anowanzoitwa ne carburetor; iyo yakaitika musi waFebruary 26. Nyaya yekutanga yekuedzwa yakashandiswa kune itsva fuel injection system yakatanga musi weChishanu kudzidzira kusati kwaitika 2011 Quaker State 400 race; Ricky Stenhouse, Jr. ndiye aiva mutyairi akakurumidza mukati memotokari yemafuta uye Ford yaiva motokari yakakurumidza. Tekinoroji yemotokari dzomumigwagwa yakanga yadzokera shure kwetekinoroji inoshandiswa mumotokari dzinogadzirwa zvikuru nokuda kwavose. Chikonzero chiri shure kwaikoku ndechokuti NASCAR haina kushandisa zvakanaka kupinza peturu apo motokari dzinopinza peturu dzakatanga kunenge kutsiva motokari dzinoshandisa carburetor mukupera kwema1980. 