A great tool for the work shop.
Now in blue/gold colour
 Cable oiler.
 Oil. (any unused engine oil will work)
 Rag (to clean up)
 Typical use:
- Loosen cable if being oiled on the bike or fix cable into a vice very gently. so it hangs vertically.
 - Gently clamp the cable oiler on the top end of the cable.
 - Place oil can nozzle into the small opening in side of cable oiler.
 - Slowly force oil into the oiler and allow time for the oil to travel down the interior of the cable.
 - Remove the cable oiler by unscrewing it and slipping it away.
 - Wipe away any excess after completing the process.
 - Do not over oil the cable.
 
This should extend the life of your cables, decrease friction and save wear.