How motivation influences habitual behavior is unclear, since only motivational decrements have been considered. Here, in two experiments, we investigated the effects of motivational up-shifts and side-shifts on instrumental behavior which was extensively trained using a protocol known to promote habitual responding. In Experiment 1, hungry rats were trained to lever press for sucrose solution. Following a side-shift from food- to water-deprivation, rats showed less lever pressing in extinction compared to non-shifted controls, although a subsequent consumption test found no differences in sucrose consumption between thirsty and hungry groups. In Experiment 2, undeprived rats were trained to lever press for either sucrose solution or sucrose pellets. A post-training up-shift from satiety to water-deprivation did not affect lever pressing in extinction, regardless of outcome identity, although free consumption of sucrose solution, but not of pellets, was enhanced. Together, these results suggest that motivation affects extensively-trained instrumental behavior through a combination of general drive and generalization decrement, but not through determining the value of the outcome. This is in stark contrast to the known effects of motivational states on moderately-trained (goal directed) behavior. The absence of an outcome-specific effect is in line with theories arguing for stimulusresponse rather than response-outcome control of habitual behavior.