Slight Change in Engine Speed

[Pathfinder]

I'm starting to detect an occasional slight change in engine speed after shifting gears. Revs up a smidge then settles in, but not every time. Seems to get better as the cars warms, but truthfully I haven't driven the car much or for any substantial length of time in a while. Clutch?

[cnicol]

If it gets worse in higher gears (3rd 4th), slipping clutch is likely.

[funvairs]

Up shift? Down shift? All gears? Engine load, light, moderate, heavy?
Clear the area around the car. Block the wheels, set the E brake, start the engine, give it some throttle and let the clutch out slowly in all the gears. What happens?

[flat6_musik]

Check out your clutch cable, linkage (for binding issues) and especially the pedal free play. Gotta have your required free play.

[Pathfinder]

Thanks for everyone's comments. I usually add Stabil 360 at every gas up but got lazy the last 2 times. I added an oz. this morning and after about 2 hours of running errands around town she seemed back to her smooth self. I'll run it more this week and see how it goes...