for the oil tubes, you can use 3-in-1 oil (blue can) or any teflon lube like tri-flow. It doesn't matter a whole lot. Those tubes end in felt packed around brass sleeve bearings that the motor rotor goes thru.
the bearings are self-aligning, but at this point are likely stuck in the correct alignment, and having a little oil in there isn't going to be significant.
the gearbox itself you'd need to remove the motor and open up to change the grease. You have an open hole that a short screw usually plugs.
the replay counter stepper units you need to access the wiper side. Cleaning crud off the printed circuit traces (denatured alcohol and a green scrub pad or 0000 synthetic steel wool) may be god enough. if the ratchet is gummy because someone used something like wd40 in there, you take apart the unit by:
1] remove the wipers
2] remove one bolt from the open at 96 switch poking out over the ratchet. Loosen the other bolt and flip the switch up out of the way
3] remove the return spring coiled around the ratchet. Should have 2 turns of tension on it.
4] you can usually pull the ratchet out and clean off the shaft/hole. No lube should be used on plastic->metal interfaces. If you can't get the ratchet out, you can remove the arms. You may want to remove the arms anyway to clean/lube the pivot points.
5] lube the pivot points of the arms.
6] a really thin smear of super-lube on the circuit traces will help prevent oxidation
7] reverse to reinstall. For the return spring, you can go a little looser or tighter, but test to make sure unit can step all the way up and will reset after one step.